If you are just talking about Season 1, it's better to watch it in the Air Ordering. It won't make sense, but it works out quite nicely. There is nothing wrong with watching it in chronological order, but some of my friends thought it was crap when they accidentally watched it in dvd order not knowing of the airing order.
Airing Order is the best. If you're adding season 2, I say to watch it separately, because the quality is questionable. Endless Eight pretty much eats at Season 2, it's a frustrating filler. In my opinion, the 6 other episodes are way better to watch, and watching them separately won't make it that confusing as you'll know when it is chronological. That, or it won't matter.
Enjoy Watching!