Stayed at Sai Ying Pun's dorm for three months. Super convenient location just a few walks away from the MTR, cafes nearby, with all the major CBD's lying around Sai Ying Pun. Considering the location, the price is reasonably cheap (the rooms are very small but comfortable enough and I wouldn't complain)!!! A major surprise in an expensive city.
The only downside of the dorm is, I daresay, the lavatory/bathroom area can sometimes be an intolerable sight if you're a cleanliness freak. Overall, a very good place.