I love the marmite aspect of these cars..!
If they appealed to everyone, they'd be flying out of the doors.
People had issues with the P4SS but having got them sorted over the years, they would make a brilliant car if they had an easy-up hood.
I think history will record them as being a success for MMC but, like the M3W, it will take years to fully shake them down. Whether as an owner you're happy with that is a personal choice. All I know is that people walk past my humble 4/4 to look deeper at the Cosworth legend..