Hey longsought.
I'm very happy you cannot afford the O2R
At least we're in time to stop you buying one.
The O2R was one of the first 8 bus digital consoles, its not very user-friendly (compared to most other ones) and above all - it does NOT sound good! The pre's are crap, and the whole thing is outdated in every way.
If you want something similar, but MUCH better to use and MUCH better sounding, look at the Panasonic
WR-DA7, which not just outperforms the O2R, it slaps it silly left and right. On top of that, its got pretty decent pres.
In addition you can use a faderbank of the Panasonic as MIDI controlers, you can use a faderbank as a DAW controller, its extremely versatile.
If you get something like the DA7 you won't really need a console, unless you want to bus in groups of keys or something like that. But yes, the A&H pres are better, and the EQ is substantially sweeter sounding.