preferred to share with:
1. people i know in real life
2. vegetarians (or at least people unlikely to leave lots of carcasses in the kitchen...)
3. people unlikely to hold all night parties on site.
can pay up to £35/night or so - depending on size of room and location will pay more to be closer, ie on the top of the crescent or in the met.
 helps me avoid explaining a lot of things....