The apartment was great! Bigger than it looks in the photos - was very comfortable for the two of us. I expect it would be also very comfortable for three people, but keep in mind the separation between the two bedroom spaces and the rest of the apartment does not meet the roof so each space isn't soundproof from the others.
Really warm and quiet - despite being the middle of winter and in the middle of the city!
Super close to shops and transport.
Toilet can be a little tricky to flush sometimes.
But altogether it was an excellent place to stay - easy to access, good instructions and very convenient.