Got mine today and had it installed on the 05 1200 GS in less than 5 minutes. Sweet!
Exactly what Hexhead said are my findings. First notice was how smoothly I was able to get from the shop through the grass at crawl speed to the front drive. Shifting seemed much smoother with out that bit of snatchiness once on the highway. Hooligan effect was not turned ON for the short test ride I did.