Great assessment. The last paragraph specially; I always think about that with reviews. Forums and such see people with problems, those happy don't post that much.
But yeah there's always issues or disagreements. Not every player is for everyone. Count me very happy. For this price, it's a steal for me, features wise. Performance is good! Maybe Spotify is slow BUT it is slow everywhere (God, guys, improve that app). Tidal is more snappy.
And having Wifi (and BT) made all the difference for me. I mostly use it at home connected to my home amp, mind you but it's great in the road, as many have indicated: quite the perfect form factor/size.
To name one, the M11 seems like the device you'd go to when you want full speed and every apk you can think of. But it's too much for me: bigger, and 3 times more expensive. Certainly FiiO is offering an alternative of course (several indeed). Which is great, if I could I'd have them all