Back in the Stone Ages, during my law school years, I used to insist upon going to Sergio's in University Circle for fancy dinners. I was a little disappointed that Sergio's Sarava, while still good, didn't quite equal its sister restaurant.
The space is really beautiful. The interior is dark, sleek and romantic and the patio is charming. The service can be a bit lackadaisical. But the caipirinhas were freshly made and delicious, so I got used to the slow pace.
Stick to the small plates. Those were interesting and delicious. The tamale cakes, ribs and artichoke fritters were fresh and vibrant. With the exception of the feijoada (lots of pork based yumminess with black beans) , the entrees were boring. The Xim-Xim consisted of a lot of rice and some shrimp overwhelmed by a lot of tomato sauce. My Brazilian Bouillabaisse was basically the same thing with the addition of some shellfish and fish fillet . Meh.
If you go, sit on the patio and listen to the band and order a lot of small plates and caipirinhas.