I just got my player, packed it up, feels good. Sturdy, and the buttons while I feared they would feel weird, tehy feel pretty OK. Didn't have a memory card to spare so I just used a USB stick via the OTG cable. Really great. (OTG cable not included).
The menu's was very straight forward and I had music playing in no time. Have only tried a few MP3's so far (hey, it was what was on the stick...) but very quick comparison is that the sound is great compared to my Cowon D2 and well - my Samsung phone can go hide in the corner for real ;)
Only tried V-Moda M80 and AKG K550 with it so far, and the V-Moda and iBasso sounded great together. The K550 will most likely need a little something. A quick try of different cables yielded the pleasant realisation that my LeadAudio L120 DAC got along great with the Coaxial cable. The K550 had a different sound directly at that.
These are just the things on top of my mind. I do feel a bit like my son on Christmas, the player got here quickly from China and everything seems to be working great. Oh, and the menu for the MP3 was absolutely no problem and embedded album art showed up just nicely. Will start messing with Flac and get some nice sessions listening going :)
So far, I feel very satisfied with my player.