For face-to-face work I use rooms in Cambridge. I also work online with people where meeting in person would not be practical.
Some people come twice a week, and some less often than that. In general, the added intensity of meeting twice-weekly enables significantly more to be achieved than meeting once a week, and it’s rarely effective to meet less often than that.
I operate a sliding scale for fees, according to what people can afford. My normal fee is £60 per session: some people on higher incomes pay more than this and others pay less.
It helps the work for sessions to be at consistent times each week, though sometimes people’s work schedules means some flexibility is needed.
I charge for missed sessions, or sessions cancelled at less than 48 hours notice (unless it is possible to find another time to meet).