Nice and clean apartment gently managed by Altido team.
HOWEVER : be aware that the heating system is remotly controlled by the owner only (which is not Altido...). We were cold during our stay (the appartment is damp, there is a humidity absorption machine in the living room) as the owner pre-programmed the system in a way that the heating would simply turn off after X time. We had to get up shivering during the night in order to put the heating on again.
Also, due to a problem in the lock of the main door we were not able to get into the apartment one night. The owner reimbursed us only the cost of the night we did not spent in the apartment, though our dircet costs related to this incident (we had to find 2 hotel rooms at 1 am with 3 kids) were higher.
Altido, from their side, offered us a discount to use during our next trip to London.....