I'm 51, and gigged new years eve for the 1st time in 6 years..Now i'm hooked again and in a classic rock band. I'm thinking about a new amp. One where I don't have to carry extra effects, etc. with me. What about these amps with modeling? do they do what they advertise? I'd like to stay in the $500.00 or so range, but need enuf power to play small clubs, unmiked. Any imput would be great!