Well I only had it for a week now and being listening to it about 3-5 hours a day even before I go to bed yes this is how good it is to me. My only other DAP's I have it to compare to are the DX50 and Fiio X1 my current HP list are Havi B3 Pro, DN 2000, A83 ( only had them for a week) HD650, Q701 and ATH M50 which I took a bit of time test it with them all. The HD650 and Q701 were amped with the Cayin C5 which sound good and clean even while double amped. The Alien sound is very clean and spacious it made my DX50 and X1 sound thin and somewhat artificial if you can call it that. I was surprise by the power it provided to my both iem and my m50's even could power my HD650 to a listening level but without dynamic and once over a certain level it would just distort. Definitely on another level compared to both of my other DAP's, really brought out more from my HP. Would recommend this DAP to anyone who is looking for a WAV and FLAC files player only, which didnt bother me at all if the sound is this good. MP3 can be converted with unnoticeable sound difference and the only bad thing was for me is learning to have no UI again is quite annoying at 1st.
Edit: So a update on the sound with over 100+hours of listening the bass is very clean mids and highs are very balanced they all come across neutral nothing jumps out at you like my dx50 where the highs are much apparent and brighter sounding. I've being getting over 8-9 hours out of the battery life which is good the alien charges pretty quick so that's a plus. The unit is very solid and for the price and sound you get, its right on the money but a price drop wouldn't be bad either as some might be hesitant.
Edit: So a update on the sound with over 100+hours of listening the bass is very clean mids and highs are very balanced they all come across neutral nothing jumps out at you like my dx50 where the highs are much apparent and brighter sounding. I've being getting over 8-9 hours out of the battery life which is good the alien charges pretty quick so that's a plus. The unit is very solid and for the price and sound you get, its right on the money but a price drop wouldn't be bad either as some might be hesitant.