I did a search before I went but I didn't come up with much, so here's my experience:
I was here to celebrate with a large group of 14. There was another group of 10 or so celebrating a baby shower. I would say this is a festive place for large groups. The only problem is that the place isn't huge.
The service was a bit disorganized. A decorative tree tipped over near our table and we spent a few minutes trying to get it upright before the staff came over to help. The ordering was also a bit crazy. The woman took half the orders (not around the table, but zig-zag and random), and then left for a minute and came back to finish. I was a little worried someone would get left out. They got all the entrees right, but they didn't know who ordered each one. They did come to check on us while we were eating, and they kept our water glasses filled.
The food - I didn't write down what we ate or what the brazilian names were but here's what I remember:
something croquettes: okay - deep fried, mostly salty in flavor. These were nothing special.
chicken wings: highly recommended. I could smell them from the other end of the table and they are definitely spiced with something I'm not familiar with. Well-fried and delicious.
pork leg cooked in wine: too salty for my taste, but someone else at the table liked it. He also said he really likes salt. We traded entrees, thank goodness, because I could not eat another bite. I ate tons of rice with a tiny bit of pork.
red snapper, with coconut milk: highly recommended. Soft and tender, it was my favorite entree.
brazilian stew at the bottom of the menu: contains some sausage and other meat, but was 80% black beans. I generally don't like beans, so I didn't like this. This dish was served with mustard greens and those were good.
chicken cooked in beer: good. I had just a bite and this was very tender, with the meat falling off the bones.
All the entrees come with rice, fruit garnish, and a sawdust-like powder. In my opinion, the sawdust powder is a acquired taste. It wasn't strongly flavored, but the texture was like very fine breadcrumbs. The entrees were priced $10-$13, which was reasonable.
At 8:15, two barely-dressed costumed dancers came it to shake their booty. They did 2 ten minutes sets and pulled diners out of the audience to participate.
Overall, it was a place I probably wouldn't choose to go back to, especially with all the other delicious options in SF, but I wouldn't complain if someone else wanted to go there for a celebration.