They're ok for the money, only thing is the ride is pretty harsh. My friends mainly have fk's which give a smoother ride, and one has kw's which probably give the best ride. You get what you pay for at the end of the day, wouldn't say they're bad by any means, but if you're prepared to save a little more in the long run its probably worth it.
Whilst your changing the suspension it may be worth replacing the upper strut mounts and bearings, should'nt cost you much from GSF.