I remember my dad using a sprinkler like this when I was a kid (I'm 61).  We are in the middle of a drought here in Texas and I was tired of having to move the sprinkler and thought this would solve my problem.  First of all, this is a VERY heavy sprinkler and is awkward to pick up and move.  If you have any trouble lifting heavy objects, get something else.  It has to be moved.  You can't drag it and you can't turn it around and make it go the other direction.  I have found I have to check on it as often, if not more often, than I was moving my oscillating sprinkler.  First, it jumped off the hose/track and was climbing the fence.  Then, it kinked the hose and cut off the water.  Finally, it dug itself a hole and had mud all over the back wheels.  Tried it another time and it just stopped spraying water.  No kink this time, checked the button on the bottom, couldn't get it going again.  I went back to my oscillating sprinkler.  At least it's easy to move around.  I think you need to use this on a very flat, very straight lawn.  Mine is bumpy and I need it to make a couple of gentle curves.  It didn't work for me.  I like the spray it puts out and would use it as a stationery sprinkler if it weren't so heavy to move.