For guitarists, I think that solid state amps have gotten a really bad rap over the years. Truth is that these tubeless devices have come a long way recently. If any of my fellow six stringers are looking for an extremely portable alternative to the behemoth you're used to lugging around, I can't say enough good things about the Quilter Tone Block 201. With my eyes closed, I don't think I'd be able to tell that I wasn't playing through a traditional amp. It has wonderful tube-like tone (for lack of a better term), has clean headroom for days and serves as the ideal platform for my pedalboard. Plus, there's a built in effects loop and Direct Output. And at around $450 and 4 lbs, you'd be hard pressed to find a better alternative.