look at grafting. In the end, it is easier and a lot more fun doing it!
I have not used it. I'd say one of the main differences is that the plugs come in a "stick" in the EZI method which lets you put the plugs into the box very quickly. The plugs, however, snap off to put them into the cups, which means they aren't very reusable.
I would imagine they would both work fine.
Experience is a hard teacher because she gives the test first, the lesson afterwards
I use the Mann Lake version (Nicot) much like Jentner. The cell cups are transluscent and you can see the egg/larva from the back. The cups transfer easily to the cell cup holder. No larvae are touched or moved or grafted in a queen cup upside down.
The beauty is you have a choice to see what works best for you. I don't graft and there's a billion beekeepers that always question me as to "why not?"
Some people love grafting. I haven't bothered.
Jackson, MO http://www.MakingPlasticFramesWork.homestead.com
Beekeeping With Twenty-five Hives: https://www.createspace.com/4152725
Ditto what Grant said. I do not find grafting easier.