Will,
It's been many years since I've played with this system but cannot remember too many problems with it. I can recall a few control boxes shorting out through time, but it was an easy fix (replace control box).
There was an ENVEMO at Carlisle a few years ago that had a 10 y/o CB comp. injection system on it and it still worked great. Believe it was Mitch, who has posted here in the past.
I have a few customers who I can connect you with if you'd like some of their feedback. None are forum members, so if it's OK w/ you I'd have to e-mail them your contact info. In fact, I have an autocross spyder roller I finished last month and the customer is just now fine tuning this system in his car, so he would have some fresh impressions for you too, including raw install, etc...