Hi!
I've had it in for a few weeks and so far no complaints.
It installed super easy and is fairly unnoticeable aside from 1 wire that comes out of the distributor cap.
I went with the newer version and their coil and have been happy. My brother-in-law is an ex-mechanic and did all the work on my car and he's had nothing but good things to say about it.
It avoids changing the points each season too.
Car starts right up and runs very smooth.
I can't say much on performance gains because I installed it right after I got the car and didn't drive it much before that.
From what I read about it I felt it was a good investment.