I have one and really like it.I like the clean channel as well as the drive channels. I bought mine second hand and believe there are no mods done to it other than the tubes being replaced. I think mine is a 1999-2000 model made in the USA not sure what or if there are any differences between it and the new made in Mexico models. The volume thing is a big issue though, so I use a volume box(mod from the site above) in the effects loop to control the volume better. You can have the pot changed to fix the problem but for now it's all good.
"Blues ain't nothing but a good man feelin' bad" Willie Brown