Yes, the dorm is open every Shabbos!! (in the weeks that people want to stay, which is usually)
They will also place you if you want to leave and don’t have where to go.
There is a nice amount of work, but not a lot of pressure, meaning, some times there could be more pressure, just because of deadlines but not because the school puts pressure.
Also the schedule is very worked out so they take into consideration when they make deadlines it shouldn’t be the day after a shabbaton etc…