I mean, for me, partly the price is due to never needing to change them, similar to flats. When they go off, they do so in a really musical and toneful way.
So really, you're saving money over roundwounds haha.
My experience of them has been very pleasing, I love how flexible they are, and they sound amazing on recordings and through an amp. What I will say, is that because of their very low tension, instead of finger noise, you do have to be careful of 'acoustic clatter' if you have a heavy touch. Either you have to be comfortable with adapting your approach, or already be a light-touch player. But if you can make them work for you, they're wonderful strings. Black Nylons much the same but without as much brightness, I've got a P strung with them all over the new Jocee recordings.....but unlikely to be released until 2023.
You can hear the Gold White Nylons on my active Lakland 55-01 (US Dual Coil Barts and NTMB Pre) on this track here:
Si