+2
I've run the Swift on the standard Kwests, Kojaks, and most recently Big Appples. I've never found the bike particularly harsh. Like Jur, I'm pretty "light" in my style of riding. I'd add that the roads here (Glasgow) are pretty dismal. Harshness is a relative thing, so I suppose it might be what you are used to.
The Quick releases aren't a problem for me, but it is important to give 'em a little drop of light oil every once and a while to keep them in good working order.
I'm pretty sure that Swift has a decent return policy, so you should be OK if you really don't like the bike.