Harp Attack is a great pedal. The distortion is good for a pedal its size, and somehow the 2 Lone Wolf pedals I have (the other one is the Harp Delay) kills a lot of feedback. I dont know the technical part of it, but it gets the job done.
The battery life is approximately 8-10hrs.
I wish I could post you a vid of the sound, but my computer does a bad job when recording through it.
I gig with mine often. I use it with the lone wolf delay right into the P.A. I think it sounds very good with both a shure 575s and a shure 545. I haven't had any feedback trouble and the 6v6 distortion sounds great.
