To me it depends on musical taste as well as speaker efficiency as to whether or not an SET will suit your individual needs. I find these amps have their limitations for ALL types of music but fare extremely well with small scale and vocal music. The budget SETs I've personally listened to would be less preferrable than a PP tube amp that would probably achieve greater musical satisfaction over a broader range of music. No one can answer this for you. You have to listen yourself. Like Ralph, I prefer OTLs and secondly a good PP amp for the wide range of music I listen to, but that is me. I would expect a good SET with wide bandwidth performance, convincing bass and dynamic impact would cost considerably more than your budget would allow.
I agree with Bombaywalla, step back, determine what you are trying to achieve within your budget and try to listen to as many options as you can.
I agree with Bombaywalla, step back, determine what you are trying to achieve within your budget and try to listen to as many options as you can.