That picture might help a little more. This is my Versa many moons ago. Stock SL Wheels / Tires and Megan Racing springs.
I can't compare the ride to any of the other springs because I haven't rode in a Versa thats lowered other than mine but its not bad. I do recommend going slow over speed bumps and such though. When I drive over a pothole I didn't see its really loud.
I've had the springs for about 20k+ miles and haven't had any issues though. If I could go back I would make the same choice with the Megan Springs.