I had a pretty good time here. The space is small, but it's more than adequate for sleeping. I would recommend bringing a long charging cable, as the bedroom only has two outlets, both on the same wall, about 6 and a half feet off the ground.
The keys include a key for the entrance into the complex, as well as a key to the room itself. The area is nice enough, with a great variety of options of Chinese and Vietnamese within three minutes of the building.
It was clean, hassle free, and a much better value than staying at a hotel. This is especially a good option if you are only in the room to sleep, but I stayed in it for a whole day and wasn't terribly uncomfortable.
Don't count on being able to cook a great deal here (there isn't much in the way of appliances and cooking utensils), but why would you want to when you are surrounded by so many great restaurants?
Simply stated I felt like I got my money's worth, and would definitely stay again.
Thanks Zhi!