I just upgraded from C5 to 8 …
I find the GUI to be TERRIBLE !
I dont know if its the whole “No basic windows settings” crap but there is so much LESS functional screen “real-estate” and the workflow makes you have to “drill down” into windows instead of the proclaimes “workflow enhancements” …
I guess my workflow with C8 will improve - but as far as the windows usability (e.g. I used to work with two mixer windows open - and flip between inserts and sends on one expanded mixer - the other mixer was ASIO outputs)
This cannot be easily done here - and the window panes (pains ! 
) are HUGE …
Is there a “minimum” display resolution that needs to be used ??? (Im running 1920x1080)