No difference in ride at all and very simple install.
Originally Posted by ESP
If you're looking at leveling kits by them, get the 1.5 coil kit instead of the spacers.
I would personally only do the coil version if the plans call for adding more weight via bumpers, armor, winch, roof rack, etc, etc, and never plan on going larger than 33" tires. At the ~$400 price point of the coil version, it is just hard to justify versus the 2.5" coil kit. But that's just me.