Amazing from the booking until the checkout :) me and my family had a great weekend thanks to Gianmaria and his hospitality! He is always available and replies so fast to all your questions. He has been really helpful and gave us a lot of recommendations for shopping, restaurants... the apartment is cool; new, clean, in a very good location (we reached almost all places by walking) and with everything you may need.
I would recommend him for everyone visiting Milan :)