I replaced my stock distributor with a Proform and have not had any problems to date other then the control module, but I have always had control module problems for some reason
. Even with stock modules.
I would buy it again if it came down to it. If I had the money I would buy the MSD, but for $150-160 the Proform is a great product.
I have had it in my daily driver for around 2 years now, maybe longer, I would have to check the receipt.