Question - Dual Boxing Different classes

After reading several posts, it seems like everyone sticks to using the same char types.

I am curious to know how hard it is to level two different chars.

Like a hunter and a mage, or a Lock and a priest, or some other combo.

I'm assuming that making macros to sync up attacks would be the tricky part.

I would like to eventually have a level 70 in all classes.

wanted thoughts, opinions, experiences.

I have not started multi-boxing yet, going to start this weekend for the first time.

:) I stopped leveling my 2 shammies on trollbane since it went very slow. 1-17 in 14 hour both chars :P normal 6 hours or something :P

2nd thing im leveling another mage now since i leveled an 47 mage in 2 days 12h like 2 weeks ago and it went easy. I did 1-45 in like 7 days normal time not /played. So creating another one, and i can boost it with my main on the other account. When they are both lvl 60 i put them together and do outlands together ;)