engl invader invader 2 ii amp head 100w

To any ENGL amp users, particularly that own Invaders, can you give me your opinion on a situation I have. I could buy a brand new ENGL Invader 100w or I have several similarly priced options for Used Invader 2's. I know Invader is what I want, just never got to play a 2. Are there any BIG...