Their rotation is easy to learn (seriously, it's mostly a matter of knowing which mode you're in, Ice or Fire, and always remembering to cast a Thunder and pay attention to Thundercloud Procs), difficult to master (since we have a bit more hurdles to jump when in actual combat).
It's not a BAD starting job and handles itself in dungeons and story raids just fine, but I wouldn't expect miracles in the end game unless you get really good with it.
