Ruby nozzles are alright. I ran them for several years on my printer. But they can break if you aren’t careful. I broke mine well cleaning a clog by accidentally applying pressure sideways with my cleaning tool. Broke a chip off the tip.

I ran lots of carbon fiber, iron and steel hybrids, and glass fiber through my nozzle without any noticeable wear.

I ran the expensive Olsen Ruby, not sure how Durozzle compares.