I've stayed at Nikita's place with other 4 friends. We had to go to pick up our keys at a 24/7 hotel reception and at first we panicked a little bit because our arrival hadn't been communicated to the receptionist who was supposed to give us the keys. The apartment is nice, with everything you need and it's quite central, just out old town, but I wouldn't recommend it for 5 people. In fact, the person destined to the sofa bed would be really unlucky since it's very uncomfortable. Moreover, I'd suggest you to bring a sleep ring mask since the curtains are just an ornament and they don't solve their function of protecting from outside light at all.