I've only had Spacecoast Tiny Perfection since 2020. I avoid most Spacecoast daylilies because the previous ones I've owned have promptly died. I'm cautiously optimistic since I purchased the plant from a northern grower. However, the winters of 2020 & 2021 were quite mild so this winter will be the test since it has been quite cold without much snow. I do hope it survives because the flowers are so amazingly perfect! Very aptly named!
I haven't had it long enough to comment on much but hopefully I can give an update in the next year or two.