I got this one this spring as a bonus and was thrilled to see it settle in and bloom this summer. The fans weren't very large, yet the blooms were impressive. Scapes were short, which wasn't surprising as a first year planting. I didn't try to set pods on it the summer, nor did I try the pollen, so I can't report on fertility.
I saw my first blooms on this plant this past summer - pretty, but not as impressive as those I had seen in the photos that caused me to buy it! I'm hoping that after another year in the garden the results will be better; that has certainly been my experience with other daylilies.
2nd year in my garden 2020, it bloomed ok, but multiplied like mad. Not a lot of blooms, and I did not measure, but they sure seemed bigger than 5". It is in a bit of shade, so I may move it in the spring to more sun and hope for more blooms.