An excellent report. I have been to Brazil 9 times but not for 8 years. I am contemplating another trip. I note your positive comment about Lagoa. I have not been there in its “new” location, not so new any more, and it has received mixed reviews over the years from long time regulars and the consensus has been that it is not what it used to be. Judging by your review it is worth the effort. I was mugged in Rio on my first visit to Brazil in 2005 an experience I have not forgotten and have usually stayed longer in Sao Paulo than Rio on my various trips.
I have come to the conclusion that the Brazilian rent boy saunas are for those of us of mature years unbeatable.