First year accommodation

I'm just in the process of firming Imperial for CS. The accommodation stuff doesn't come until May apparently so I just wanted to take your opinions on accommodation. Which place seems to have the best value for money? I don't wanna go somewhere too expensive like Beit Hall but at the same time, I don't wanna go somewhere extremely cheap where facilities aren't great. Preferably somewhere in between the two extremes (even if it does end up being a bit expensive).

Any input is much appreciated.