Overall we had a great experience. The staff is very responsive and friendly. The apartment is big and roomy with high ceilings. The location is super close to the metro and there is a bus stop right outside the door.
However a complaint I have is that the elevator was only working for 1 of the 5 days we were there. We were staying on a fairly high floor and had to carry large luggage up the stairs on check-in. It was finally fixed on the day we checked out.
Also as an FYI, one of the rooms is extremely small and cramped with very low ceilings. We didn't have enough people to occupy that room so it was fine. I think if you are traveling with children that room would be ok. But with a group of all adults it would not be ideal.