Me and my friends were in town for over a week. The apartment has everything one might need for even a longer stay. The staff is friendly and helpful (even if not everyone spoke English, we were able to get along just fine), checking in and out was a breeze. The area is indeed pretty busy and a bit noisy at night, but it didn't bother us as we were too tired at the end of the day for it to matter :D.
There is no washing machine, but there are laundromats nearby. Well-connected to public transport (at least 2 underground stations within less than 5 minutes of walking distance) and close to shops, restaurants, and museums. It was a pleasure to stay here.