My vehicle is mostly street...I hummed and hawed for a long time over the Calmini 2", Calmini 3" and the RRO 2.5"...I eventually settled on the RRO kit and so far I am very happy with it. The on road ride is firm with very little body lean, but still absorbs the bumps fairly well...sharp bumps will still jar your teeth though if the tires are up around the 30# mark

. I can't say much about its off-road performance as I've done very little wheeling since the kit was intalled...without the body lift I do still get a slight bit of rubbing with my BFG 235/75/15s. Also, you will have to get camber correction bolts if you get the RRO kit...but those are cheap.
If I were to build up a Track/Kick more oriented for off-road I likely would go for the Calmini 3+3...even better would be the elusive Calmini SAS or RRO Rockfather SAS.