This device's greatest strength is its simplicity.  Motorola did that right.  Pairing this with my phone took all of 10 seconds.  Subsequent pairings when I return to the car are even easier -- just turn the device on.

The device looks nice, and has a slim profile.  The clip works great with my visor, but it's not removable (which makes it awkward if you want to use it as a stand-up speaker) or reversable for other kinds of visors.

The battery is decent, and this is where I subtracted a star.  It advertises 45 hours talk, and 6 months standby.  What??! I've had the unit for about 4 weeks.  It came charged to 'medium' and went to 'low' within two weeks.  I gave it a full charge, and it's already back to 'medium'.  I talk for maybe 30 minutes a day, and completely turn it off when I'm not using it.  Expect to give this a full charge every month -- or week if you're a heavy user.

Also, you cannot charge this device while charging another.  I have a charge splitter so I an charge my headset and phone at the same time.  It would not work with this speakerphone.

The volume is usually pretty good.  I can hear others and they can usually hear me.  It's slightly worse than my Bluetooth headset, which doesn't suck.  Everyone could tell I was on a speakerphone, but they could almost always hear me.

I was VERY impressed by how quickly the device turns on and pairs with my phone.  I just sit down, flip the switch, and it's ready in about 1.5 seconds.

I do wish that it would resume the pairing though.  In other words, if I leave the car and bring my phone with me, then return to the car 5 minutes later, I have to turn the speaker off and back on.  It's quick and easy, but it would be nice if it just re-linked itself.

So despite a few limitations, it's not bad.  Great price for what you get, and that makes this a winner.

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Update June 21, 2012:  Still using the speaker, and I think the battery issues I wrote about earlier have somehow resolved themselves, or maybe I was being to critical with an early review.  It seems I need to fully charge the device about every 2-3 months, when I use it about 5-10 minutes a day.  It does go from Medium to Low rather quickly, but stays on High for a good amount of time.  So now, when it hits Medium, I just bring it into the house for the night to charge.  I still wish it were louder, and automatically reconnected to my phone when I return to the car more than 5 minutes later.  It also has an annoying habit of repeatedly connecting and losing connection if I am standing about 10' away from the car.
This device's greatest strength is its simplicity. Motorola did that right. Pairing this with my phone took all of 10 seconds. Subsequent pairings when I return to the car are even easier -- just turn the device on. The device looks nice, and has a slim profile. The clip works great with my visor, but it's not removable (which makes it awkward if you want to use it as a stand-up speaker) or reversable for other kinds of visors. The battery is decent, and this is where I subtracted a star. It advertises 45 hours talk, and 6 months standby. What?? ! I've had the unit for about 4 weeks. It came charged to 'medium' and went to 'low' within two weeks. I gave it a full charge, and it's already back to 'medium'. I talk for maybe 30 minutes a day, and completely turn it off when I'm not using it. Expect to give this a full charge every month -- or week if you're a heavy user. Also, you cannot charge this device while charging another. I have a charge splitter so I an charge my headset and phone at the same time. It would not work with this speakerphone. The volume is usually pretty good. I can hear others and they can usually hear me. It's slightly worse than my Bluetooth headset, which doesn't suck. Everyone could tell I was on a speakerphone, but they could almost always hear me. I was VERY impressed by how quickly the device turns on and pairs with my phone. I just sit down, flip the switch, and it's ready in about 1. 5 seconds. I do wish that it would resume the pairing though. In other words, if I leave the car and bring my phone with me, then return to the car 5 minutes later, I have to turn the speaker off and back on. It's quick and easy, but it would be nice if it just re-linked itself. So despite a few limitations, it's not bad. Great price for what you get, and that makes this a winner. -----
Update June 21, 2012:  Still using the speaker, and I think the battery issues I wrote about earlier have somehow resolved themselves, or maybe I was being to critical with an early review. It seems I need to fully charge the device about every 2-3 months, when I use it about 5-10 minutes a day. It does go from Medium to Low rather quickly, but stays on High for a good amount of time. So now, when it hits Medium, I just bring it into the house for the night to charge. I still wish it were louder, and automatically reconnected to my phone when I return to the car more than 5 minutes later. It also has an annoying habit of repeatedly connecting and losing connection if I am standing about 10' away from the car.