People purchasing this bike with the expectations of a super sport will be let down. However, I find this bike very satisfying in riding the twisties and canyons here in the Texas Hill Country. I routinely hit over 110mph on several of the straightaways, and hit it fairly agressively through a lot of the regular twisties (75/80 in 50mph curves). These roads have it all and the bike handles well. Would I like more power, sure, but for the price point and what this bike is designed for it does it very well.
Folks spending thousands to make this into an R6, or even something more, in my opinion should have just bought an R6. I researched before I bought and kept reasonable expectations. Yet, my expectations were still exceeded with this purchase and I'm happy with the bike. I will get another, more powerful bike later, just because I want more bikes

But man, this FZ6R for the price everyone pays for it is a great deal.
Summary, great bike at the price. Shortcomings? Absolutely and you can find lots of fault. Those faults are easily overcome by purchasing another bike (you don't buy an Accord to drive like a Porsche). So, as long as expectations are kept in check, you can have loads of fun with this bike. 100mph plus stretches, easily cruises on highway at over 75, handles twisties well for us non-professionals (pre-load set at 6 for me made a huge improvement).