I viewed it a few years ago when I relocated my job to London and at that time it was one groom per 10 horses which I felt was too many on a full livery basis and the T/O wasn't sufficient. Also because its a competition centre the schools were hard to get into.
That may be totally different today though and I would find out more.
Ditto the turnout, we are 10 minutes from Patchetts and have part livery spaces if you are looking. Individual all day turnout, 2 arenas and only 8 horses.