Excellent, expert and friendly service with a personal touch. While I found BSH online, I live close by and decided to visit their physical site here in Tucson. Very impressive, and Matt quickly set me up with the helmet mirror I was looking for. I bought the EVT Safe Zone Mirror, convinced that I should give it a try after watching Josh's video demo on the BSH website. The mirror was easy to install. It is solid in design and construction and exceptionally stable—stays solidly in place and exhibits a minimum of vibration even over the roughest patches. I ride a bike and a recumbent trike, and angle adjustments between the two seating positions are a snap and stay in place. The mirror's face is larger than previous helmet mirrors I've used, and at first glance I thought it might be too large. However, I found the coverage to be superior to my previous mirror and I readily adjusted to the wider scope of vision. On the other hand, my wife considers the size to be somewhat ungainly from a sartorial standpoint, but in terms of effectiveness I don't think it can be beat. Besides, I gave up attempting to make fashion statements long ago. Indeed, I highly recommend it to the paranoid and paranoid at heart: keep your helmet on at all times because no one is going to sneak up behind you with this baby.