The house is really very refined and complete with everything, even the location is excellent but the real problem was the host: more than a host I would call him "ghost". We arrived in Symi with a file of "instructions for using the house", we opened the door according to instructions and for 7 (seven) days of stay, we did't see neither the owner nor any people sent by him. At check out we closed the door, left the keys in the mailbox and, alone as we arrived, we left.
The owner said he was available to solve any problem, but Symi is an island and he lives and works elsewhere, plus he is very busy and keeps the phone offline most of the day. Until now we had never found a host so absent: if he cannot take care of the house he should delegate a guy who lives on the island to receive the tourists and to solve any problems that may occur (example: electrical failure, loss of keys. ...).
Fortunately we didn't need him.