A side note: It was reported by a Big Forum migrator that I spoke with that there were some issues with the memberlist. When users would look at the memberlist the server would crash. Not sure about the versions of IPB / XenForo this impacts, but if you are making the move and don't want to disable that feature test in a dev environment before migration and if it fails make sure to chat w/ the developers.
I imported from 3.3, and the only problem I found with the 3.2 import was the Warnings. They weren't transferred over. Aside from that, after following all instructions everything seems to be running perfectly