Im sorry, but one thing i cant stand is this kind of thing, just go out to a shop and try the damn thing for god's sake.
Only you will know if you will like the sound.
Personally, I prefer the Vox Valvetronix, but thats me.
Also, there is no real need to buy new, search around for a second hand Combo, for $500, you could probably Pick up a s/h lovely bit of kit..
Possibly, i have no idea of American prices, but you may be able to get a TSL601 combo, or a DSL401, or even a fender Hotrod Deluxe.
Just get out there and try loads of amps.
If you are thinking of buying, the shop owners wont mind you being in there all day if you feel like it.