Etched Eyes has been in my gardens several years ... and has produced the most beautiful polymerous flower I've had so far in the gardens - a 5 x 5 poly:
But poly blooms aside, this is a beautiful daylily. My zone 3 winters have never bothered it or set it back at all, so for me that makes it reliably hardy. It is an early bloomer, and gives me something to look forward to before a lot of the others have begun flowering.
The edge boasts a lovely ruffle, the sepals recurve and that pastel lemony yellow with its raspberry / lavender eye lends elegance to the corner of the garden where it's planted into a perennial border. Very nice substance and lovely contrast to the foliage of a peony I have planted behind it.