Oscott Gardens was to put it in one word "insane". At university, you may travel to other universities to see friends, but nothing comes even close to comparison of Oscott Gardens. Why? Because the accommodation exterior is scenic, the build is nice and it has a very community feel to it. Some flats have been updated more than others so you have to be lucky to get the updated ones, however all the rooms are the same and rather spacious (especially since you get an ensuite in all rooms). Even if you don't get the refurbished ones, the standard is still quite high. There is always security lurking round 24/7 so you feel very secure in your flats.
Oscott definitely has the best facilities (and parties) compared to other halls that i have seen. However the location of the halls is not in the most...pretty area. Granted that the university itself is in perry barr, there isn't much choice if you want on-campus living. But the area is very poor and run down. However there is a shopping centre very near by which accommodates for all your needs and more.