The tires have proven to be pretty darn good. Clearly they are not the best. However I have no issues with them in the rain or snow. I would suspect women whom don’t frequently drive or young teens may differ though. They do ride rough however and that is a trade off. They are expensive and that is why I have wheel and tire insurance.I'm honestly impressed you've gotten that many miles out of the tire, it's definitely not been the case for a large part of the community that said not all roads are the same.
I personally wouldn't keep them on and would rather just shelve the tires for when the lease was due and swap them back.
But that's just me, if people manage to get a full life out of the tires all the power to them.
If you take time to actually research the forum it’s only a minority that have issues with the tires. There is a very vocal minority of about 10-20 members that absolutely hate the tires. With some 200,000 Q50’s on the road I would consider that minuscule at best.