My first MB team was the 5 different classes; Pally, Druid, Shaman, Mage, and Priest. At 80, I am able to do heroics, although some of them do present challenges that might be easier with 1 tank and 4 shaman team, I like the idea of going in and being versatile.

The biggest issues I have is remembering what each of the classes can actually do, as there are so many spell options. The next issue is mapping it all out on the keyboard. Some heroics require a different scenario than others so new macros and new key binds are required. But that is all in the fun of it.

Also, the different classes gives me a chance to pull them out individually and fill needed spots on guild runs, and I actually find that quite relaxing at times compared to multiboxing heroics.