As a long time Android fan/Apple hater, Ill be the first to admit earlier android phones had a lot of annoying bugs. (force closes, weird sync issues, etc). My s5 rooted and rommed hasnt even needed to have the battery pulled in over 2 months. Running moar 2.0 which is basically a souped up performance version on TouchWiz. I generally prefer stock based roms, but I ran into a lot of sd issues among others when I tried throwing cm11 on it
I guess my point is that android has come a long way, not only with leading the way with innovation, but ive seen barely any glitches in the current batch of 4.3+ high end devices. Note 4 is gonna be a sexy sexy device.