I orderd the d22 heavy load, bluemax kit from zordo.
I was impressed with the delivery time, i think it was next day as i recall.
The price was right.
Zordo said the kits only for cars carnying constant loads and those that dont will experience drive-line/tail shaft shudder at low speeds...
the rear went up almost 3 inch's, ideally when carry load it settles down to 2inch's...so with more than 2inch rear lift you need to consider ignoring the tail-shaft shuddering (under 10kmhr) or having it fixed (tail-shaft extension, spacer, something?)
its quite easy to ignore & not really an issue for me, but i know some people are paranoid about these things.
im unsure if this was a common thing, but my leaf packs had the centre pin/bolt in upside down...it was annoying, but easy enough to flip.
apart from that, im a happy customer.