I absolutely do have a long term review. I already have a short term review I posted a while back of the IIIPro (linked by jonathan above) on my gravel bike compared to the SM-RT64 rotors. I loved them a lot and after scary brake fades that could have killed me on ultegra rotors I decided to get them on my road bike as well. I was a pretty average descender, not very confident before.
Swapping to iiipro was the biggest upgrade I've made to my bike, easily. I feel invincible. They've been tested at 85kmh, down the galibier (top 6% on strava), izoard (top 8%), ballon d'alsace (top 4%) and plenty more. I was a top 30-40% type of descender on ice tech rotors. I might end up on going through a terrone's windshield but I'm not going off the road.
Running them with R8000 rear brake with stock pad and R7100 front with bucklos ceramic pads. High center of gravity, hoods only, no supertuck. Needless to say the rest of my setup could be improved but the rotors alone made a HUGE difference.
They haven't reversed my hairline or brought her back, but they're really impressive. If you are still buying shitmano rotors, what the hell are you doing?
(iiipro please sponsor me)