I have it, don't have anything against it, but probably wouldn't do it again if I were to get a new CR-Z tomorrow.
My installation took a little longer as I used that opportunity to play with the horns, where I ended up putting an air horn for the main and nothing on the secondary. It's also a golden opportunity to clean up the radiator and other things that never get cleaned and collect debris.
The installation is smooth per the instructions. As is typical Honda, it's a little hard for old folks with old eyes like me to locate the scribe marks for where to drill because it's covered up with overspray and dirt.
I guess you saw in the instructions that you are going to lose the lower front spoilers. I'm not completely sold on that. In my heart I feel that those spoilers were functional and this mod is not. When I detailed my car, I used those little spoilers to know how bad I was pushing my clearance limits. And those spoilers were installed pretty solid. Now I have a big hunk of rubber that looks like carbon fiber held on by 7 push pins. Just based on the angle of it and that it's very low, it "looks" like it will break off pretty easy. OTOH, I have had it almost a year and it's still there.
In retrospect, I think I could have left the spoilers on. Also, in retrospect, I think I could have left the bumper on...just being very careful with how deep to drill.
I'm sure you will like it. In your part of the country, it can double as a snow plow. LOL
The cost, the fake carbon fiber, losing the factory spoilers, questionable functionality, and questionable ground clearance were all negatives to me. On the plus side, it looks okay on a silver car, you don't have to detail the lower front side spoilers. And if you ever take it off, nobody will see the holes without looking up from under the bumper.