Hi,
I never lived in Marl/Sols but spent quite a lot of time at a friend's flat in Marlborough, so had the chance to compare it to my own room (in Westwood).
The rooms are large, with high ceilings and lots of space. Comfortable, decent sized bed, large bathroom (i'm told the shower is powerful but goes cold from time to time), and good sized desk. There seemed to be limited storage space though - just a wardrobe and one large shelf - my friend had stuff stacked on the floor in the corner but i guess if you wanted you could get some kind of collapsible shelves for there.
The buildings are only a few years old, and have new kitchens - with minimal damage! I did notice that the walls are thin enough to let the noise of loud music through, but the ceilings seemed thick enough to stop upstairs noise coming down.
As for moving out - make friends with people in other blocks and shift all your cookware etc into their rooms - thats what my marlborough friend did. Do a tesco order before then and save the crates for transporting your stuff too!