It's nicely flexible and easy to fit.
You need 8.5M to do the 4 doors, I bought a 1M test piece first to see how it fitted then once happy ordered another 8M which was just a few inches short enough, so ordering 8.5M will be enough if anyone wants to try it.
I can say it has improved things, not up to modern car standards by any means, the big square door mirrors don't help that any plus the roof gutters, but now at 60mph a conversation is much simpler, even at 70 the noise isn't anywhere near as intrusive as it was.
The doors require a slightly more firmer push to close but as ever with new seals that should ease slightly as they settle.
So for around £50 I consider it money well spent.