What do you guys think?

http://us.battle.net/d3/en/calculato...POQ!aVd!bbaZYZ

This build is insanely defensive, pretty fun to play with if you are kind of undergeared for act 4 like I believe I might be, or just bad at the game (like I believe I might be, lol)

I might switch shock pulse into arcane orbs, but other than that, I would like to listen to opinions, and if anyone actually tries it out, all the better