You get what you pay for - it's a budget place with poor lighting & plumbing, and barely enough room to turn around. Aside from sharing the bedroom (as noted in the description), you'll also share the flat with the host and his girlfriend, and possibly other friends (while I was there they were having a world cup party in the living room, which would have been ok except that I was sick and trying to catch up on sleep). Also got a drop in while the host was out from another random friend who apparently also had a key and was using the flat as a place to chill.
That said, it's a good location and a great price, so if you're on a budget and don't mind being social (or just plan to be out most of the time), it's a good option.