I'm running the AC kit and it isn't that bad. Now the fitment is questionable, but I finally have gotten it all squared way. Her customer service (surprisingly) is pretty good. She has provided me with solutions and advice on the install of the kit and even pictures when I needed them.
Once u actually get the kit on and working, it is good. I dnt have any leaks, and the clamps (t bolt) and couplers were all there and were sterdy.
Bottom line is its definatly worth the money. You are getting a complete FMIC kit for 450. But if you are an impatient, or don't have access to some tools (mainly a hack saw or a chop saw and a manual/power grinder) then the kit might prove to be more of a hastle. Hopes this helps