I run 'em. At first I kept my stock springs with (squished-to-hell) Rocky Road spacers on them. When I finally swapped the XL-7 springs in, not only did I get as much lift as I want, the ride also smoothed out A LOT. Body roll also increased significantly (and I'm running the XL-7's front sway bar), attributable mainly to the higher center of gravity I imagine, but I couldn't be any more pleased. Shoulda done it a long time ago.
So, I can vouch for them if you're running the V6. Can't speak to the effects if they're used with the 4-cyl.