I was talked into a pano roof by the OPC when I finalised my spec. "You won't easily sell it without"
I've probably opened it twice in nearly 5 years and that was only to let the heat out on scorching days parked up.
I recently had blocked drainage holes which meant 2 days in the OPC(fortunately under warranty) whilst they stripped out all of the passenger footwell
to dry it out and check for damage to the electrics.
I'd never spec a pano again and to hell with the residuals.