I wont lie, heirlooms have spoiled me, and if you are RaF link leveling it is the ONLY way outside of spending gold to keep your gear halfway in check....

My friends and I really just enjoy speed chain pulling instances. At least one of us plays the tank, the other one/two will play dps heals or what ever is needed. We have learned over the years that double DPS and a tank that KNOW how to play will destroy big pulls so fast that you really do no require a decent or good healer.