I have roughly 8-10k miles on the kit since we did the install in April. There was nothing missing from the kit, and the most important parts of the instructions were simple enough to follow.
On an auto trans LJ we found that you do need to drop the trans skid to get full droop as the front drive shaft will make contact.
Even when compressing the springs( we had to use paired ratchet straps) they were a tight fit to get seated in the spring buckets.
I went with an adjustable track bar rather than drill a new hole.
On the LJ Rubi, there was no need to use the t-case drop kit, which really amounted to no more than some bodylift pucks and longer bolts.
Plan to move your bump stops on your own to be able to stuff tires with out heavy rubbing.
I netted just over 3.00", but not quite 3.25"....I do have bumpers/highlift/tools on the Jeep.
On road the ride is firm yet compliant. No excess body roll using the stock sway bar with the included extended links. Yaw and pitch is controlled and feels like it is less prevalent than with the factory shocks and springs.
Off road while disconnected I have great flex and rebound is nicely controlled by the 2.2 shocks( no leaks, no issues, valved nicely). The springs do not come unseated at full droop on factory control arms. I would suggest checking brake line length making sure that they do not go taut at full droop. You will see more droop with an aftermarket control arm as the factory pieces will bind against the mounts at full extension.
I drive A LOT and have not seen any noticeable settling or loss of lift. I get out on mid blue to black trails at least once a month, maybe more often if time allows, and have been very impressed with the quality, durability, and function of this basic lift.
Future plans include a 1.25" body lift with 1"MML, possibly a tummy tuck, and adjustable arms....just don't know which ones yet.
Great product for a mid level weekend warrior on a budget whoc wants to maintain good street manners.