Snowball have a great team of animators and 3D artists and it was a pleasure to work with them. At Snowball Eyeon Fusion is the tool of choice and it was the first time for me using the software. The following is not 100% fair, as I never really studied how to use Fusion and have little experience with it, but I found Fusion very odd and difficult to use. I guess the biggest drawback in Fusion is the lack of good documentation and no real user base. It just shows how good the Nuke community is and how that makes using Nuke so much easier.
Even though that was the case, I am still very proud of the work we did there.