i played a lonstar spec. and it was freaking amazing . if i had to pick an amp to play for the rest of my life that would probably be it . It may not do metal or hard rock but the sweet smooth distortion is just too good .
i didn't play the 6l6 version but i can imagin it would be nice as well .
check out
andy timmons' stuff he uses them and there are some good clips on youtube with him talking about his setup .