Audio quality is good and I haven't had any issues dropping out. The packaging and case are pretty sleek. There are a few small issues - no aptX, the charging case layout is a bit odd as you have to flip each earbud counter-intuitively. Headset mode seems a bit hit/miss - the sound is awful as you might expect (though the mic seems fine), and sometimes playback mutes while the mic is on. It can get a tad uncomfortable in one of my ears after using it for a while, but the other one is fine so that's probably just me. It's pretty easy to accidentally trigger the touch controls when inserting or removing it from your ears.
Those gripes aside, I think it's good value for money. I just wish that bluetooth headsets actually worked properly when you want to use the mic. Really limits what you can do with it. But as something to listen to music while you exercise and don't want wires, and maybe a phone call once in a blue moon, it seems pretty solid.