Since I've had two setups, I guess I'll comment on both.
1. Tein S-Tech springs on stock struts.
2. I wasn't such a fan of the drop, because it left the ass-end flying high. You could fit a finger between the tire/well in front, but over two fingers in the rear. But I thought the drop in the front was perfect. The ride was very similar to stock, perhaps a shade stiffer, but not much. My view of these springs is a little skewed though, because I also put on my 18" wheels with the 35 series tires at the same time. So.
1. Ground Control coilovers on Tokico Illumina struts.
2. I absolutely love the drop, but of course, that's adjustable to your particular preference. The ride? One word -- OUCH. Between my low-profile tires and the stiffness of the suspension setup, I want to cry going over rough roads. I've actually been bucked right out of the seat more than a few times. However, the handling is fantastic. Between the performance tires and the coilovers, I can rip around turns like there's no tomorrow! So it's a trade-off, of course -- handling and drop is great, but it's nothing remotely resembling a smooth, comfortable ride.