Only done it once but it seemed pretty simple. Fairly obvious tells for many of its attacks. The fire breath can be nasty but he doesn't seem that threatening overall. The 'Mega Flare' he does is a joke and is really easy to prevent.

The final part where it sets the castle on fire is pretty interesting but again it never really feels like much of a threat. The Laconium sword is an interesting part of the quest but I generally let other people use it until the end (where everyone gets one).

Pretty cool fight overall but as with most of the raid bosses it's easy.