They’ve had an awful reputation for years, I’ve yet to have the “pleasure” of experiencing them first hand.
My road bike came with 25mm Grand Sport Races, no issues with them, bought a 28mm pair later.
GP4000S IIs were noticeably better rolling, but wear relatively quick and a bit vulnerable, especially in the sidewalls. One died last summer (sidewall tear), one on rear now squaring off.
4Seasons are a bit draggier than GP4000S IIs, but they have a bit more puncture protection and are great in the winter. Plenty of wear left after two autumn-spring periods, often on the commuter.
Set of GP5000 in the spares box waiting to fit, part of me wants to fit them this week while on annual leave along with the Supersonic tubes, but part of me feels I’ll be wasting them while I’m cautiously recovering from mild COVID-19.