I fitted this combination to my 2.0 NC last year ( 26 March 2021) , only covered 2200 miles since then, since fitting my driving has been a mixture of local back roads and a few 180 mile e/w motorway bashes.
No problems so far.
I also stripped and rebult my front and rear calipers at the same time, which i put on another thread somewhere on the forum.
I had a gander at hundreds of other MX5’s at the Elvington record attempt last year and saw that not many cars were sporting fancy looking discs.
They perform Ok and look pretty neat imho, behind my newly powder coated wheels, so happy with my ‘upgrade’ thus far. I hope you are too.
The Mintex pads generate quite a bit of brake dust though.
edit:
here is the link to the other brake thread Caliper clean up