I bought this to replace a Poly (aka Plantronics) Voyager 5200 that I thought I had lost for good. I was pleasantly surprised by how big of a bang for your buck this little earpiece is. I’ll list some pros and cons really quick.Pros:—The sound quality of the earpiece is great. Calls from other people, music, audiobooks, and videos all sound wonderful.—It comes with an in-ear style earbud that makes it so much easier to hear phone calls than the the on-ear style. (I had to buy a third-party adapter for my voyager 5200 to have this)—It’s 95% (read the con in the next section) comfortable. It rests comfortably behind my ear and is very easy to adjust.—It comes with a nice charging case.—The mic quality is very good. My son has borrowed it several times to call me while driving down the road, and I can hear him crisply and clearly in his old ‘06 Ford Truck. My husband also says he can hear me impressively well when I use it, even though I am somewhat soft spoken. We do agree that it’s not quite as crisp as the voyager 5200, though.—The battery life is good. I have no problems getting through the day with this little guy. Popping it back into the charging case when I’m not using it has been a life saver too.Cons:—My Biggest Complaint: The entire flat/round base at the back of the mic boom is an answer/hang-up button, and I accidentally press the dang thing every time I’m trying to put it in my ear and answer calls on the fly. I’m constantly hanging up on people and having to call them back because of my bumbling fingers.—The mic boom tends to rest against my face instead of hovering a couple millimeters over it like I would prefer. I can usually finagle it to sit the way I like, but it can be a bit of a process. It might be because I’m a bit in the chubby side, and it might be easier if you have a thinner face. I’m honestly not sure.—The ear loop is detachable, and you can make it fall off with enough manipulating. Make sure you push it all the way back together after you’ve been messing with it. It’s not a big deal, and it doesn’t happen a lot, but it’s something to watch out for when you’re using it.My conclusion:The pros outweigh the cons, and I don’t regret my purchase at all. I actually really enjoy this little earpiece. I eventually found my voyager 5200 in my truck, and was able to pass this earpiece down to my teenaged son who praises it as an absolute game changer. So, my family is still getting a lot of benefit out of it.If you’re on the fence or worried about some of the negative reviews, I hope I’ve helped ease some of the worry. It’s a great buy for the price. If you notice a rare problem in the mic quality like some reviewers have, do not settle for that. Send it back and get another one, because from my experience, it’s supposed to work really well.