I’m currently running Eibach springs and definitely feel that it was an improvement over OEM. There was more predictability when encountering bumps, etc. I really don’t feel like I’m riding on the bump stops (FYI Eibach I’d instructions are to trim the bump stops for that reason). I went with springs since I was looking for an affordable setup (tire rack had them on sale for $275 for my 3P). Plus, the installation is a breeze with a spring compressor and power tools. Once the struts/dampers give out, I’ll probably go the coilover route.