Came here on a weekday so I didn't get the full experience of seeing the Brazilian dancers perform but the place does indeed have a sexy vibe to it.
I thought the buffet selection was great. The salad bar in particular was amazing! I really had to resist not filling up on those and focus on the meat instead. As for the meat, it was delicious. High quality stuff but VERY salty (perhaps to encourage you to buy drinks) which makes the salad bar really necessary.
Memorable items: cornbread, parmesan chicken, parmesan filet mignon, top sirloin, bacon wrapped filet mignon, grilled pineapple and the salmon
One thing that really turned me off was service. As dinner went on, it progressively got slower and slower. The meat just took so long to come out and a lot of them were ones we didn't want anymore. The wait lets the fullness kick in or we just got too lazy to start eating again. Once you've tried everything and established your favourites, you will probably only want more of those...but it's not really up to you. They do take requests on what meat to bring out (and we made several) but only about half of them were fulfilled. Our main server was pretty inconsistent. She was more attentive near the end when it was less busy but was pretty much non-existent during the dinner (although we did have other servers check up on us).
Copacabana is great for a guys night out and birthdays (complimentary dinner for the individual - minimum table of 4). Overall, worth a try if you've never experienced this type of dining before.