What he said.

I have the Ultra, and it's great. But, truth be told it does nothing the one linked above doesn't do really, apart from an ability to charge at a higher rate. At that price, it's hard to beat. I bought the Ultra because I have some 5000mAh batts that I can charge at a higher rate, so the time reduction (and that it was available at my LHS for a competitive price) was worth it to me.