The Garden House apartment was pretty much as advertised. It was plenty big enough for our group of nine (9). The number of beds, bathrooms and showers was good for our group (all adults).
The location in a residential neighborhood very close to the train station was excellent.
We weren't in the apartment much except for nightly recaps and discussion of the next day's activities and the common area was fine for that. The kitchen is small - good for coffee and toast/rolls but not much more.
The apartment was clean but gets a little damp. It was somewhat bothersome but nothing that a dehumidifier or two wouldn't solve.