Don't lose the key: I will charge you 250 euros in case because I have to change everything. Even if it's stolen. By the way, don't hang out with your passport, leave it at home. If you need a copy I can do it. In case, I suggest you to travel with keys and passport never in a bag, but someway under your clothes so nobody can steal them withouth sexual aggression ;). If you get lost you can SMS me (preferably) or call. Respect the neighbors and be as quiet as possible especially in between 10pm and 8am. For washing machine and other devices ask me before using them please. If something gets damaged by you please let me know and we will find the best solution.
City tax: 3,5 euros per night and per person. You pay separately to me, I give you receipt with official print. Children under 10yo don't pay. After the 10th day don't pay.