I was looking into buying a used Hartke 1415 combo amp for $250 +shipping. Do you guys have any feedback on the quality of this amp? I would like a nice, round bottom end tone. I play many styles and i would like to have a good all around amp. I'll play everything from the doors to sublime and operation ivy, to metallica and black sabbath. Also, is $250 a good price for this baby? Thanx a lot for ur feedback.