Personally I use the maxiglide, because well one I am lazy and halfway through my head my technique begins to fail I find the teeth and the steam feature really does an amazing job and I can do it rather quickly (about 30 minutes vs the 90 it used to take).

Having said that I would recommend that you buy a ceramic or tourmaline plated flat iron. They usually distribute the heat evenly sometime the cheap ones have hot spots which can damage your hair.

Anyway here is a link that should probably help you more

good luck!
Hair Type: 3c/4a/4b, fine, normal porosity