1. Beautiful, functional, and highly adjustable
I'm a huge fan of Giamoto rear sets, but they don't make them for Suzuki (oddly enough, they make them for my Triumph D675 which is less common than a GSXR), so after seeing the video that Brian did, I knew these were the ones for me and I wasn't disappointed.
They look sharp, feel secure, and you can tell from handling them and using them for a couple of weeks now that they're everything they're hyped to be.
They are more expensive than I'd like, but they're by far the best looking rear sets out there for the GSX-R's and as my bike only rarely sees a track day, form/looks are a huge part in my buying decisions.
That said, if you do do a lot of track days, these are extremely adjustable and you'll not want for function and settings with these.