Just spent the day playing my Quilter Aviator 1x12 for the first time. I had heard good things about them but I didn't expect this amp to sound so good. At no time was I aware of playing a solid state amp. The amp is unbelievably warm and clean. And loud! I bought this to replace my Matchless Chieftain, which has become too heavy to drag around. I don't feel like I'm giving up anything with the Quilter. Maybe I'm just in the new amp honeymoon period and am not thinking clearly, but this amp is as good as any I've played. My current amps are the Matchless and several Swarts. I fingerpick, so I play amps that have nice cleans, detail and warmth. The Quilter nails it. I'm not sure if I'd say they rival my beloved Swarts, but time will tell. Right now, all I'll say is this amp is a keeper. Wow.