CX has a rather poor reputation going back many years for cheap products that sort of fit and eventually fail. Back in my "import tuner" days, their manifolds and plain old headers were known to crack at the welds. I have used their intercoolers with good results.
-This kit in particular uses a junk Chinese turbo (call yourself lucky if it lasts 20k miles).
-The wastegate (also a cheap knockoff) vents to atmosphere, which is illegal (whether or not your local jurisdiction cares to check), and will result in lots of noise and terrible exhaust smells

-Intercooler placement is poor--charge pipe below the frame rail does not jive with off-road use, airflow to intercooler almost completely blocked by front bumper.
-No provision to maintain the factory MAF, so you'll have to rework the intake to figure that out on your own
-BOV vents to atmosphere (may or may not be an issue, but will confuse your MAF by allowing metered air out of the system)
-if you're dumb enough to run a 10psi wastegate spring out of the box, good luck!
I have not used this kit or even seen one in person, but my thoughts are that if you are building a turbo setup from scratch, the manifold may be a viable alternative to the treadstone manifold (which has it's own host of problems). The downpipe would also give you a starting point if you didn't want to fabricate the whole shebang from scratch. I would consider it a starting point, at best, not a complete kit.