Theo was an excellent host. He communicated clearly, was flexible about check in and check out, aand everything was smooth. Very friendly.
The apartment is ideally located in a nice local area, close to many good bars and cafes. Also great public transit access.
The apartment itself, a third floor walk-up, is totally serviceable. Plenty of space for two people (although tall people might hit their heads a few times on low-hanging lights fixtures). But it's in an old building, and it shows a bit. The shower could be cleaner, the toilet doesn't work very well, the couch is old and thoroughly used, there is some clutter of personal belongings, etc. Nothing bad at all - a completely pleasant stay - but probably not for everyone. Theo mentioned he had a new maid, so maybe some of this will be resolved in time.
Overall, a nice apartment with a few flaws in a terrific location and great host. 4 stars.