BTDT, the biggest problem is that you have to run another part on your engines belt system. Image your engine with factory air, converted A/C pump for onboard air, and a second alternator.............
Personally, I don't have A/C and am planning on this mod over the winter. Along with a cheap home made under hood shower that I found a write up on in a mag. (Don't remember which one)
95.5 YJ with "stuff"