Our 19y/o daughter stayed with us so she had the sofa bed in the lounge and my wife and I had the seperate bedroom. Still places to sit in the lounge even with the sofa bed extended. However, as the ensuite is the only facility, this could be an issue if the third person was other than family. The shower is weeny. Tall enough, but a tight space. If you drop something, it'll probably have to stay there till you're done!
The flat is so cool. It has its own private courtyard and you'll wish you owned it yourself. A/C was a very welcome relief for afternoon siesta during the June heatwave. Location? Just like everyone has said: it's brilliant! Close to everything. We loved our stay in Sita's flat and she was great.