Dear Cristina,
I would like to take the opportunity to thank you again for all your help and hospitality. I would recommend everyone looking for a lovely and affordable place to come and stay at your apartment.
You are a very nice, kind, warm, supportive, helpful and charming person. I wish we had more time to chat with you and ask you about Rome!
We (I and my wife) hope to see you again!
Regards,
Mahdi