I basically 4 manned it till I hit woltk managed to do nexxus and Utgarde Keep

pre-bc stuffs a cake, once I hit bc I had to either outgear or 2-3 levels over the instance level to be able to finish the instance in a reasonable amount of time or else it wasn't worth it, took to much time to run for the exp yeh get.

Any instance boss that's a dps race yer gonna be hurting with only 4.

Having that fifth char really helps :P