Ive had one on my 05 for almost a year. It took some getting used to but now I love it. Tight technical trails are a breeze (almost like cheating). I don't really care for it on mx tracks but maybe if I spent more time there I would get used to it. The perch adjuster is the way to go, I used it a lot to get it dialed in, now I could probably live without it. The perch adjustment assembly seems a little cheesy, nothing really seems to keep it all aligned well and it leaves your clutch cable open to the elements(In western WA) thats not a good thing. I bought a neoprene chain stay protector for a mountain bike, cut it in half, and put that over the adjustment assembly. It works great, keeps the water and dust out, helps keep it all aligned, and looks pretty cool too.