*** UPDATE *** 10/20
I contacted Waterpik customer service regarding my faulty Cascadia shower head, and they shipped me off a replacement--for free!  No questions asked.  The new one is improved from my old one.  The switch works much better and there are definitely no leaks.  The showerhead works really well.  What I like best about it is the dual mode settings.  Most showerheads that have more than one setting try to pack in a whole bunch of different modes.  Most of them are difficult to tell apart, and all of those massaging ones need really good water pressure to do much of anything.  Quite frankly, I've only experienced one massaging showerhead that I really liked--unfortunately a very expensive model and very wasteful with water.

The rain mode on this head is very good.  It's not the largest, but I'd say better than average.  I tested the flow and found it does deliver about 2.5 GPM (gallons per minute).  The center jet is nicely powerful without feeling like needles pounding on your skin, delivering 3.5 GPM.  It's great for rinsing your hair.

So, my 2 star review is a bit premature.  I wish I could change it to 4 stars, as the replacement unit is great and Waterpik customer service exemplary.

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I've owned my Cascadia for 5 years, having put it in storage for about 2 of them.  So, 3 years of solid use.  At first, I really liked it.  If you have sufficient water pressure, you get a nice wide spray of water in rain mode. The center switch can change the mode from rain to center.  The center jet is stronger and focused, good for getting your hair rinsed from conditioners.

HOWEVER, this product does NOT last.  Like others have cited, the center switch is poorly made.  There are 3 black rubber O-rings laid out on the plastic dowel, with some thin plastic shielding in between.  That plastic shielding gets weak over time and ends up twisting, contorting, and eventually tearing.  The result is that it lets water leak through the switch and exposes the O-rings to stress that eventually tears them, making the leak even worse.

By default, the head does have trouble staying up because of the flexible arm.  This can be partially solved by tightening down the screw mechanism.  It takes a while, but you can eventually make the arm stiff enough that it won't drop completely down on you.  Unfortunately, it does leave only a few positions where the head will stay put.

The water action on this head is great.  I would have given this product only 1 star if it weren't for that.  This item sure looks good, and performs well when it is functional, but for the price it is NOT worth it.  The only metal on this thing are four Philips head screws--everything else is plastic and rubber.  The finish is fine, but the fit is sub par.  Mine has gaps along the edges where the head stem pieces are.  For this kind of quality, I'd expect the head to cost $15.

WHY can't Waterpik get its act together and make a decent product at a reasonable price?  I'm on a quest for a REALLY good dual or triple mode shower head that is well designed and acceptably priced.  If you know of one, please post in the comments.  I'm going to try contacting Waterpik for a replacement switch in the meanwhile...
*** UPDATE *** 10/20
I contacted Waterpik customer service regarding my faulty Cascadia shower head, and they shipped me off a replacement--for free! No questions asked. The new one is improved from my old one. The switch works much better and there are definitely no leaks. The showerhead works really well. What I like best about it is the dual mode settings. Most showerheads that have more than one setting try to pack in a whole bunch of different modes. Most of them are difficult to tell apart, and all of those massaging ones need really good water pressure to do much of anything. Quite frankly, I've only experienced one massaging showerhead that I really liked--unfortunately a very expensive model and very wasteful with water. The rain mode on this head is very good. It's not the largest, but I'd say better than average. I tested the flow and found it does deliver about 2. 5 GPM (gallons per minute). The center jet is nicely powerful without feeling like needles pounding on your skin, delivering 3. 5 GPM. It's great for rinsing your hair. So, my 2 star review is a bit premature. I wish I could change it to 4 stars, as the replacement unit is great and Waterpik customer service exemplary. - - - - - - - - - - - - - - - - - - - - - - - -

I've owned my Cascadia for 5 years, having put it in storage for about 2 of them. So, 3 years of solid use. At first, I really liked it. If you have sufficient water pressure, you get a nice wide spray of water in rain mode. The center switch can change the mode from rain to center. The center jet is stronger and focused, good for getting your hair rinsed from conditioners. HOWEVER, this product does NOT last. Like others have cited, the center switch is poorly made. There are 3 black rubber O-rings laid out on the plastic dowel, with some thin plastic shielding in between. That plastic shielding gets weak over time and ends up twisting, contorting, and eventually tearing. The result is that it lets water leak through the switch and exposes the O-rings to stress that eventually tears them, making the leak even worse. By default, the head does have trouble staying up because of the flexible arm. This can be partially solved by tightening down the screw mechanism. It takes a while, but you can eventually make the arm stiff enough that it won't drop completely down on you. Unfortunately, it does leave only a few positions where the head will stay put. The water action on this head is great. I would have given this product only 1 star if it weren't for that. This item sure looks good, and performs well when it is functional, but for the price it is NOT worth it. The only metal on this thing are four Philips head screws--everything else is plastic and rubber. The finish is fine, but the fit is sub par. Mine has gaps along the edges where the head stem pieces are. For this kind of quality, I'd expect the head to cost $15. WHY can't Waterpik get its act together and make a decent product at a reasonable price? I'm on a quest for a REALLY good dual or triple mode shower head that is well designed and acceptably priced. If you know of one, please post in the comments. I'm going to try contacting Waterpik for a replacement switch in the meanwhile...