What type of music will you be playing mostly?
I have the GMX1200H which is the head version of that 2x12 combo.
Its a very versatile amp for what I play BUT its clean setting is terrible.
If a good clean tone is what you want I wouldn't get that 2x12 combo.
There is also quite a bit of latency when switching from one channel to the other if different effects are loaded on the 2 channels.
Not a big deal when practicing at home but not a good thing in the middle of a song when playing out.
Just my 2 cents.
Guitars: Vox standard model 24,Framus jumbo acoustic,
Crafter Telecaster copy,Crafter D-7 acoustic,
Samick les paul copy.
Dillion SG
Amps: Behringer GMX1200H, Epiphone valve jr.