I've never ridden with aero bars but from what I've read and seen controlling the bike is an issue with aero bars. It seems, there is definitely a learning curve to controlling the bike while on the aero bars. In his book that-I-can't-recall-the-title, Leonard Zinn suggests starting with the bars set wide and move them closer together as you get used to controlling the bike. That doesn's look to be an option with the bars you picked.

FWIW