I lived 3 months in Carlos apartment and I had a great stay. The interior is modern and fresh. The location is in the very centre of Lapa, which is a very nice and lively neighbourhood. This means that you can expect to hear some music and partying from the streets, which I didn't mind at all. Just something that is good to be aware of. Carlos is a great host and answered quickly to every question I had. I was pleasantly surprised with the apartment, it was even better than in the pictures I think. I can warmly recommend to stay in Carlos apartment for anyone visiting Rio.