I have RoughCountry Discos on the LJ.
http://www.roughcountry.com/swaybar-disconnects_1128.php
Positive: Cheap, Adjustable, Comes with storage bracket.
Negative: Lower bushing does not swivel.
Sum: Positive. 2000X better than a set of old style RE discos!
Have these on the XJ:
http://jksmfg.com/c-381013-shop-by-vehicle-cherokee-xj-swaybar-swaybar-disconnects.html
Positive: Awesome Disconnect! You can just about be flexed up and get these off! Adjustable, greasable.
Negative: Price, no storage pegs (Order an extra set of pegs and make bracket).
Sum, better than RC disco's but 3X the cost.
For the amount the LJ gets disconnected the price point sold me.