I bought these after a recommendation from a friend and the opportunity to give his pair a trial run prior to the purchase. He has has them for almost a year and have had them for 2 months. I have used them from every purpose from my handheld head set for making business calls (over 50 a day), listening to music on my laptop (at home) and on my iphone while I am exercising. I run about 45 mins- 1hr/ day, 4-5 times a week and they fit well and stay firmly attached.
The sound quality is great for both music and phone calls. The mic picks up your voice well and there have been no complaints from the other end regarding any issues hearing me.
The package I received gave a complete (but simplified) breakdown of initial set up, the control buttons and the meaning behind each light color and flashes. It's also nice having a voice telling you the when connected/ disconnected and how much listening/ talking time you have left. The control buttons on the ears are easy to use. The transition from music to a phone call and back is a simple as one click of a button. Very convenient. The ability to toggle through songs by pressing one button on the headset without having to pull out the phone or be in front of your laptop is great. It takes about a day's use to become completely comfortable with buttons.
Some additional thoughts. If you are looking for earplugs for music only, these might not be best for you as they do not create a "seal" within the ear. There is some space left and thus some outside noise does get in. This is fine with me given that I am the type of person that prefers to be able to have a decent sense of what is going on around me at all times. Also, this noise is not intrusive given how the headset is so well rounded. I do have to say that it is a bit cumbersome to get them on the ears each time. I have found this to be true for almost all wireless headsets, but hopefully that they will find a way to make this a bit easier.
All in all, a great product that I would definitely recommend.