No dents, yay!!
Did you start with a single growth plant?
For some reason, a few GN I have tried have been very slow grower unlike other roth x parvi hybrids that I tried.
Dollgoldi always grew like a weed for me but without ever blooming. lol
I've had decent luck with Delrosi and Harold Koopowitz.
One Gloria Naugle that flowered earlier this year is working on the new growth but with its current speed, it would be at least two years before it is big enough to flower. That would be good, though. Two years only and blooms again?
My other GN that I have kept looks to be in low sheath finally. This one is supposedly a mericlone of the "red" from Taiwan, so I'm looking forward to it whenever the flowers happens!
I think GN is worth keeping as long as it blooms. The leaves are attractive as a houseplant.