I talked with Lee, he said his Studio's are wonderful with SE5way but despite everything is cool with that little long battery life player, lack of high resolution support prevents me from buying it. If it was supporting 24/192 or at least 24/96 in FLAC, I would already bought it. UI is good enough for me actually. I always use folder view for playing my music, so it's UI is not a problem for me.
Honestly, I didn't even know he has Rocoo BA too as well. We only discussed about Studio. I believe its 3rd Anniversary Edition of Studio's.