Read some very unfavorable reviews on these and some not so bad as well. Local retailer is practically giving one away. It's a head and it's under $400. I asked the "sales associate " about the foot switch. He looked at me like I was asking a crazy question. He said "is it with the amp?". I said "no." He said "I'll look into it ." Never saw him again so I'm assuming it's MIA. Are these amps any good? Worth $399???