Ok so I just read that it is not supposed to erase your presets when you update.

Sorry... got a little excited.

Are there any noticeable improvements in sound or anything like that, besides the extra effects?

I cant seem to quite dial in my dirty sound on metal red.  It almost sounds like it's muffled, or 'holding back' the souns somehow.

Well, not literally muffled, but kind of like it's not letting loose.

Clean Red lets loose and fills the whole room. It leaps more from the cabinet.

Do I make any sense? lol