The apartment is fantastic for 2 couples or 2 people who want their own room. We had to have one person sleep on the futon, which sucked - but besides that, it was a fantastic stay. The location is exceptional, near lots of great restaurants and bars, and is a perfect distance from the more touresty/monument attractions. Walkable but not so close you deal with large out of town crowds.
The team supported an early bag drop off and an early check in, and checked in every day (not necessary, but still nice) with recommendations and to make sure everything was working.
Only negative (aside from the crappy futon) was that the hot water is definitely not unlimited. Our 4th person got stuck with icy shower. Would recommend taking quick ones if you have a decent sized group.
All in all, would 100% stay here again.