>>96044624
>Ever used them?
Many times, both sides of the DM screen. Villains, allies, and players alike. My all-time favorite character was a kobold dragonfire adept in a 3.5 game actually.
>How did it go?
Well the players love to hate them as villains, love them as allies, and love being them as players. I quite enjoyed my Riilga.
>Care to show notes?
Sure, here's that aforementioned character:
https://www.myth-weavers.com/sheets/#id=2428679