As a CALMINI suspension owner myslef, you will find many, many satisified owners. Way more than dissatisfied ones. I have over 60K on mine, without any issues. Ask onwers and get the stats before believing one post or thread on the internet.
The one problem the CALMINI kit has it it now allows you to really wheel hard, which in turn exposes every weakness of the Kick components (like aluminum diffs and weak idle arms). This is not the kits fault, rather, the vehicle.