Very unsafe lockboxes system for the keys. Guests are not allowed to keep the key, as it needs to be put back in the lockbox at the entrance. The codes for the lockboxes are the same for all apartments and anyone could get in. No lockers are provided within the apartments, so if you have important stuff to store it's really not the place for you. Because some guest forgot to put the keys back, I was locked out and had to call the host in the middle of the night.
In the apartment where I was we had 1 bathroom for 10 people and the shower was working very bad.