Aside from the hollow walls, which meant that noise or "room activities" in neighboring rooms could be heard, I thought that the price for all the amenities, location as well as comfort was well-worth. I've stayed in SFC before at another location (a shared hostel) and this one is definitely much, MUCH better than that hostel, as well as safer.
Ignoring the noise and neighboring guests' "room activities," I would definitely return again - great price for a great location. I particularly like the no-smoking rule inside and within the building's vicinity. :)