Love mine enough to get another pair full-price when I lost my first pair that I got on sale. Have a hard time getting most earbuds to stay in my ear. Yurbuds worked but they felt jammed in. The Bose are really comfortable and fit kind of loosely in your ear, secured by the wingtip. Sound quality is good but it also allows you to hear ambient noise so you can hear someone coming up behind you. The cord keeps itself untangled pretty well and the buttons have worked for over two years, even the somewhat fickle click three times and go back one song.
Bose has these off for 50% now and with more wireless products coming, I keep seeing these on sale. I tried the Bose bluetooth ones--maybe not the most recent iteration but one before and they were too clunky for my ear and hearing the thud of my steps made me feel so cumbersome. I hated them.