Hey, I was at City of Glasgow College last year and lived in Halls. I stayed in Victoria Halls, which was bought over twice since I was there and is now called Liberty Living.
I had a great experience there, and found it to be possibly the best year of my life. The rooms were the best value and also had en suites in them all. Since I left I think they have upgraded the beds to 3/4 Full lengths. On top of this they have added a games/social room.
As for Caledonian Court, I am not too sure but if I remember correctly there are more to a flat? Up to 15 or so I think. Liberty Halls are 5. One thing I know is that these halls have security guards that are very picky about letting people in, even friends (At least at night)
I can answer any questions you may have on the halls, or Glasgow life in general. I am hoping to apply to GCU for next years term and would look to move back there.