When I bought this model, I had just lost a Jawbone that I hated (review left for it too).  I bought the Discover 925 and I couldn't be happier.  The sound is crystal clear nearly all the time.  The microphone is a solid performer too.  I never have anyone repeating "What did you say" with the 925.  The silicone based ear buds hold up forever and do a super job of holding it in place in my ear.  Their comfortable, too. To explain how much I like 925, I lost it and went to another brand only to come back and buy the 925 again after giving up on the other brand. 
Here is what I like about the Discovery 925 The ear buds are comfortable and work better than any other I have tried.  
The sound quality it the best I have experienced and I have tried too many different models out.
Easy to own because it charges with a Micro USB cord so you can charge it from your computer, or a car adapter and comes with a case that has a built in battery so you can charge you headset when there are no power sources around.  It was perfect during an all day hike I took just outside town. I was able to hike and be available by phone so I wasn't missed at work for even a minute.  Perfect!

Recommended: Yes