This is a spacious, comfortable and clean apartment. Good place for 6 people.
It does face a busy street so two bedrooms are a bit noisy. The hosts are available by email quickly but may not be so easily available if you need them to come out in person. The key situation is complicated and cumbersome if you have members in your group going off to do different things at different times. There is the potential for someone to be left behind and locked in the building if you do not coordinate. The intercom was not working the entire time we were there, making things more complicated for getting in and out of building. The elevator was broken for 2 out of the 6 days , still broken when we left.