All the above said, I'm using mine now and not having any issues. I actually like them and the mic for calls is very very good. Better than my M&D MW08 Sports which seem to have gone south after the firmware update - they're unusable on calls now. The Grell fit fantastic, they're incredibly lightweight. I'd say the soundstage is wide and smooth. The bass definitely has decent punch. I ran the SoundID tests and have a good mix going that uploaded to the buds no problem. Touch controls can be annoying, i.e. testy on the left bud but I think I just have to learn where to exactly tap. The ANC is okay. About comparable to the MW08 Sport, maybe a tad bit better. It's def not awful. I put on a pair of Symbio foam tips and that helps with the seal and passive isolation which in turn helped the ANC. I'll use them most of today and try to see how long I get. I'm not close to a point where I'm annoyed and want to return them. That said, it could blow up for me like a few others. Fingers crossed that doesn't happen.