I first looked at the Motorola HS850 and ended up returning it (see review on that page) and ordered one of these. I like the in-ear style much better than on-ear, and the vibrating feature was a nice addition. Yes, I do get a little static when my phone is on the opposite side of my body (the manual warns against this), but for the most part, it's a decent unit. No comment on battery life yet as I only use it for commuting (about 2 hrs a day), and not great in windy conditions, but othewise pretty solid.