From the perspective of someone who stayed in the master bedroom - this place was great. A bit small but big enough for two people, and there's everything you need in the kitchen - we even cooked - and the bathroom. It's well located - we walked to all the sights nearby.
If you're planning on having someone stay on the sofa-bed, I'd warn you not to. The IKEA bed is cheap and uncomfortable - coupled with the very loud street noises (garbage collection + general party area) made it extremely difficult to sleep/relax there.
So again - if you're two and staying in the bedroom, this place is great. If you're two (or more) and plan on using the sofa-bed, don't.