I remember seeing this map used in 4v4 leagues before it was officially added. I thought it was a little drab reusing the Borneo jungle theme without much transformation (such as Lakeside). All the vertical flank routes made the map pretty interesting and definitely what I think of first with this map.
That said, I don't enjoy maps without routes to sneak past middle, and it feels like you're spotted too far away before crossing that threshold to flank, especially if you want to reach the objective. I can see why it would be chosen for 4v4, yet for 12v12 I don't quite feel satisfied playing Brazil over other maps like Highpass or Kong King.