I've had my Purple de Oro since August 2020. Last year was it's first blooming summer. It's in a fairly nice spot at the front of Upper Daylily Hill and gets enough light.
This first year in the ground, it bloomed from June 30 to July 25 with 23 blooms and a last surprise rebloom on September 20. The flowers varied widely, some more striped some more purple. But I'd say that it did very well for a brand new plant. I am a fan of the minis and I like the look of PdO.