|In my opinion, quick-lights are great if you're somewhere that doesn't allow you to properly heat natural coals. If you're camping, if your stove is broken, etc., then these little guys can simply be lit with a lighter. However, make SURE that the coals have gone gray before you place them on your bowl - otherwise not all of the accelerant will have been burned off and a nasty taste/potential headache will ensue. No bueno. And don't forget to use tongs!
If you want to be taken seriously by the pros, you're going to be using natural hookah coals as your standard option. These do not have an accelerating agent in them, so they will take longer to light, however they will last longer and have little to no effect on the flavor of the shisha. So from here on out, when I say coals, you think natural. Ready? Coals. Natural! Coals. Natural! Go, go, fight, fight, now let's learn to heat them right!
(This is an awesome guide <- to the different kinds of coals that are available.)