I recently did a run of RotF and I have to say I was impressed. There were a few fight mechanics, such as not standing in fire, but it was relatively simple. Don't get me wrong I'm not saying instances should be simple, but being the first instance in the game it does a good job of introducing players to their roles and basic fight mechanics.
The design of the instances is four sections representing each of the seasons with a boss at the end of each section. The first boss was relatively straight forward you kill his two adds then kill him. He does occasionaly stun and sheep. The second boss was don't stand in fire. The end. The third boss has two weak adds with him. He also does a frontal cleave and random charges. The last boss summons adds before you actually fight him. The first add has a daze ability, very easy. The second add splits each time his health gets low getting weaker each split, after the third split he dies completely. The last add summons waves of chumps, spam your aoe and you got this. Next you fight the boss the he only ability he has is a root ability which wouldn't matter except that there's a light moving around on the ground that causes damage if it touches you. Basically don't stand in the moving fire. That's it, super easy for anyone who's played an mmo before, but not dull.
