It was pretty awesome. One of the players ran in and grabbed the dragon in order to forcibly remove him from the room to stop the treasure from getting entirely destroyed, and when the dragon eventually got back in the room, the party rushed him to at least stop him from moving.
The fight featured some neat monsters that were fun and challenging, but not frustrating. Proving once again that ongoing damage is a good mechanic.
Overall it was a fun session that ended up being more lucrative for the party based on the party's tactics and actions, a fine thing if you ask me. We also learned that dragons HATE blowguns.