The gel layer is a bit firm so seal might be harder to obtain when wearing glasses.
Again, no issue in studio usage for the intended purpose but maybe an issue for glasses wearing sub-bass fans.
On that note, I wear glasses with somewhat thin, but not the thinnest arms.
For me at least, the Røde's FR with in ear mics is more repeatable and stable when moving about than anything passive and closed I've ever tried from Harman.
The yoke's axis geometry is a bit unusual but works well enough to provide enough range of motion to align the cups properly against my head and my ears fit somewhat well within the cups (but I don't have gigantic ones).