I just got my swayback, and I'm not a fan. Since I am a Spyderco collector I'm not going to get rid of it, but in my opinion, this one was a miss.
The blade is excellent--gorgeous to look at and the hollow grind is awesome. However, there's no sharpening choil, and most important, the Spydie hole is way too small. I can still open it, but it's not nearly as positive a flick as other spydercos, even smaller ones. Speaking of flicks, you can't Spydie flick the thing. There is no hole on the other side.
It's also heavier than I was expecting. After comparing it to the Spydiechef, same company, same designer, the Spydiechef is just a superior EDC tool for anything except specific wharncliffe applications, and Spyderco already has a few offerings with a wharny blade shape. Hell, they have more coming out this year.
IMO the Spydiechef has vastly superior ergos too.
The Swayback's plain clip would bother me more if I actually intended to carry it.
Again, I'm going to keep mine, but if I'd been able to handle one first, I would have passed. Maybe after they're inevitably discontinued, I will sell mine and put the money toward something else.