First off, I must disclose that I really know nothing about Bluethooth headsets in general. This is the first, and only item of its kind that I have ever tried or purchased. I purchased this one based soley on existing customer reviews.That said, I will add my review to the list of kudos. This is a wonderful gadget! It has great clarity (for the wearer, and person on the other end), good noise cancellation, ample battery life, plenty of volume, and it is simple and intuitive to use. For example, I wanted to use a voice command while driving one afternoon. I didn't KNOW how to do it, but figured I would just give it a go and see what would happen. I pushed the button (the only button) on the headset, after a few beeps and boops, I spoke my voice command. My phone dialed the number. I thought, "wow, this thing works like one would think it should." Neat! I don't know how this unit will work with other Bluethooth phones, but with my Sony-Ericsson Z520, it is a real gem.The only knock I would give it has to do with the fact that the bit which actually goes into your ear is a bit too large. I would love it if it were designed with an earpiece similar to the ones on the Sony MDR series "ear bud"-style headphones. But that's my only complaint.As the title suggests, for the money, I think this item is hard to beat!