Pros
Exactly as described, and in an awesome location near great restaurants and places to go out. Flat was very clean, spacious and comfortable. Tall ceilings. Quiet (despite busy street). There are only four beds (and no walls) so it truly sleeps 8. It was great for our group (who also didn't mind the openness) but would have been a push if we had any more people.
Cons
There was a sewer smell in the downstairs part of the flat (and too many airfreshners covering it up), which was the only slight 'issue.' The windows didn't open either, which didn't help. It was manageable but not awesome.
Overall great flat, wonderful host and amazing location. Would recommend!