I stayed four days at Axel's with a bunch of friends for 2014 new year's eve. The favela might be a bit harsh to climb but the view from the terrace of the house is totally worth it!! Axel was really nice with us, explained everything we wanted to know about Rio. I highly recommend the experience of the favela. People there are very nice and generous (even if the music of neighbours might be a bit loud sometimes!!). We never felt unsafe. and loved to discover the city from a different point of view. We stayed in the small house (Casa 48 b). It is a bit small and not so well equipped, but it was fine for us. Thank you Axel for everything!! You're welcome anytime in Sao Paulo!!