I ran Ulduar for the first time last night, and I have to say the opening boss (Flame Leviathan) is THE most fun boss fight I've encountered in any instance or raid, anywhere or at any time.
Because the fight relies purely on the use of different types of siege vehicles, your fighting abilities matter very litte. More important is your ability to coordinate with the other members of your raid. Since I may never have enough money to be able to afford to build or purchase a Chopper, riding one in this venue was a sweet reward.
Because of numerous wipes (this was my guild's first Ulduar attempt, after all), I had the chance to be the gunner in a demolisher and be launched onto the deck of Flame Leviathan (human cannonball!), be the gunner in a siege engine, and to buzz around in a chopper laying down oil slicks and picking up other raid members on foot.
I HIGHLY recommend this fight, for pure entertainment value, if nothing else.
