Meizu not fixing the bugs in their firmware is the biggest problem for me.
For me i own the SL version and i have not encountered any end-of-song stuttering. My major complaint would be the long loading time for playlists.
But for its price, i feel it is acceptably good. Better audio quality and battery life than my iPod video. Lightweight and small size. Being able to play ogg vorbis makes me happy too. Now if only Meizu will release a new firmware that fixes all those fundamental bugs...