I think it looks good. I prefer Sarissa Precision over TT Combat, in general. Most SP kits have removable roofs or second levels for gaming, while that is not always the case for TT Combat. As far as prepping, I find that adding in textures makes MDF buildings look less generic. I would do this step after assembly.
For a way over the top texturing and modifying I've done, check out my post-apocalytpic mobile home....
Nice job on the cafe, though!
Mike Demana