Have had this small amp for a year or two and I use regularly with good sound quality, ample amplification, and satisfying listening through it. Gary, who builds these amps by hand is always ready to answer any query, and that is very re-assuring. Have also other portable amps, such as the JDS Objective O2 (which is my top amp and my very favourite), the Fiio E11, and the Little Bear 2.
However, even though the Objective O2 is my favourite for its clean sound, I never have any regrets when listening to the Electric Avenues PA2V2, as it has a very satisfying sound for its asking price, is strong and sturdy, and, at least in my opinion, quite good looking.
Battery life seems to be phenomenal, the batteries are easily rechargeable, and even when the batteries die out through frequent recharging (which will take quite some time, say years) they are easily replaced by new rechargeable batteries without any difficulty whatsoever.
The adjustment screws inside the amp are also very helpful to adjust its output according to what headphones you are using. Have used by AKG550 and Philips Fidelio X1 (both having relatively low ohm resistance) on this amp with good results - even though they both do not really require any amplification from my MP3 players, the sound does benefit and gain more punch and authority from utilising this amp.
So definitely highly recommended by me as I find it to be an enjoyable and not too expansive amp.