Hi, i just bought the I5 and I like it so much..
Here is my opinion:
From upside
Warm characteristic (can be good or bad)
Good size of dimension. Better grip compare to Onkyo.
Bluetooth and wifi signal is more strong compare to Onkyo.
Nice looking UI which diferrentiate with others DAP with android.
Line Out with maximum volume, although the volume information still showing different numbers.
Decent playtime 15-20 hours (combined playing with bluetooth, line out and HO)
From downside:
1 slot microsd. If there is 2, it will be perfect combo.
Can not read FAT32 microsd.
It doesn't turnoff automatically when 2 players open at the same time. So the sound will come out together from the 2 apps at the same time.
Still can not find a way to kill the open apps. If spotify or poweramps remains open although it is pause, it will reduce the sound played through the original player.
Thanks.