I have the Flyer on my bike and love it.You wont notice the springs working until you get onto rough roads,even then you don't really feel them working but they do smooth out the rough stuff a bit.

As a general rule of thumb a sprung saddle works best if your handlebars are saddle hieght or higher and unsprung saddles for saddle hieght or lower.But either saddle will work for just about any bike.