From what I've heard and seen on reviews, you're better off just getting an air system for the same or less money.
It doesn't really offer any overclocking headroom above a good air solution.
I mean, it's the cheapest closed loop WC system you can find, you shouldn't expect it to be amazing or anything.
Either go for a full on WC setup and spend a couple hundred, or just go with a good air solution for $30-60