Diego's place is comfortable and safe. As someone who walks regularly, I found it to be close enough to the center and walked there daily. If you don't like walking, the metro will get you there in no time. He went out of his way to receive me when my flight was delayed and made sure I had everything I needed for a comfortable stay. Just make sure to put the lock provided on your bedroom door when leaving the house to ensure that the very friendly and cute dogs don't go in while you're away.