Yeah, I wish the Focus had a bit less space allocated to the cargo hold and the rear seat was 2-3" further back. Of course given the roofline that'd mean anyone over about 5'8" would have their neck bent over to sit back there...the GTI's shape is definitely the box it came in, but it pays handsome rewards in the rear cabin and cargo area.
The GTI is a very nice small GT car, and in that role it definitely makes both daily driving and longer distance stuff easy. Given that's what I do with the car 95% of the time, I can't complain. I do wish it had the steering and shifter feel of the Focus, though.