My pot has been languishing in shade for some years, so I can't really make any fair judgement about performance.
Fwiw, some things that I have noticed:
The flower is indeed beautiful and opens well here. (I have seen so few of them, though, that I can't remember if they are EMO or CMO.)
The scape was weak and leaning. (That may or may not have had to do with the shade that it is grown in.)
Last winter, when several daylilies around it had frank rust, this daylily did not. However, the foliage did look somewhat sickly then, in the sense that it was green with suspiciously sickly yellow looking blotchy areas. I kept wondering if it was going to break out in pustules (I am now somewhat skeptical about rust "resistance" unless I see it for myself, having been burned), but it never did. Maybe it really is rust resistant... or tolerant... or something...
And maybe now (with the deer fenced out) I can finally move it out of the shade... or at least, into lighter shade...