I was confounded by Brazil for my first 3-4 years of working with it. The lightbulb clicked on just as I was ready to move on and at my next job, I missed Brazil terribly (maybe it was just Stockholm syndrome).

I eventually boomeranged back to Amazon and have found the middle ground. When used right, Brazil solves a lot of problems and day-to-day I enjoy working with it much more than not. The trouble is that almost all teams don't know how to use it and tie themselves up in knots of their own making. Third party software is also a problem. I hope Peru comes through, but so far I haven't worked with it, for good or for bad.