Point Exe AccomodationWatch
That said, SOME people really enjoy the whole halls experience, and often make good friends outside of their subject who they go on to live with in houseshares etc. It's hard to say how much weight to put on this as it varies enormously from person to person. In general I'd advise living with other people in a shared flat, if anything, to practice for living in houseshares in the future (so you know the things that annoy you so you don't do them to annoy your future housemates).
I gather the ensuites are usually little more than closets with a toilet and/or shower, but it varies between all the various halls so Point Exe might be better than some.