I have these and I'm quite happy with them. I put some triple flange tips on them and they never fall out. These weren't meant for exercise, so people complaining that they can't go jogging with these should really consider what they were meant for. They last up to 8hrs on a charge as advertised so no complaints there either. My only complaint when I got them was that they didn't seem to have enough bass. Granted, I'm a bass-head, but even if I weren't, the bass was just downright weak, almost non-existent. Then I noticed that these had small port holes on them. I used 1mm strip of duck tape to cover them (it actually looks like it belonged there as part of the original design), and OH< MY < GOD!!! These things transformed in bass beasts!!! They now are my favorite buds for the type of music I listen to (hip-hop and electronic).
I can see how the size might turn people off, but for me (I have a pumpkin head) they are fine. The convenience of not having to worry about wires snagging and causing my phone to hit the ground is a huge plus, and as mentioned, the sound profile once I covered the port holes is OUTSTANDING to my ears. I think these buds are getting a bad rap. Anyway, that' just my humble opinion. If you like bass, don't mind doing a simple mod, plan on using these as intended, and don't mind the size, I can't recommend these enough! For reference, I have the TFZ Series 5 (black), and Sony XB-500 (cans), sony mdr xb950bt (cans), Beats studio, Klipsch x10, and many more buds that I can't remember the names of. After the tiny and simple mod I mentioned, I think they sound just as good as my XB-500s which have 40mm drivers, which is a pretty tall order. Again, that's just my experience with them and my humble opinion so don't hate me too much! :)