I have an 05 Tass, Genisis geometry. Two other bikes, normal geometry. honestly, I have never switched to the GF and said, WOW this bike feels totally different. I just ride it like the other bikes. I have read and maybe even repeated that you either love the Genisis geometry or you hate it. This isn't true in my case, I don't even notice it. As for manufacturer claims of better climbing? most of the time when climbing I shift my weight forward over the bars, if I'm not completely out of the saddle. So it would seem that for me the better climbing thing is just a selling point that may or may not fit a riders style. I notice GF still makes Conventional geometry bikes also, So they're not convinced it's better for all. I also notice the GF is more likely to break the rear tire loose in slick conditions, I don't know why. But I don't think about any of these things when I want to ride it. Sometimes I think we make more out of something, than it really is.