I have a ton of twist drills ranging from super high quality to junk. The difference is awe inspiring. I have one set of brad point bits that I bought for those times when I wanted super clean holes with pin point accuracy. I bought a set and rarely use them because I don't need them most of the time and I bought a cheap set of Sears, that look just like the one you list up there, but I'm certain I didn't pay $40 for them. (it was a while ago)
Whats wrong with them is 50% of the reason I bought them was super clean holes... not so much. I recommend you get the Lee Valley bits for just $3 more. I don't own them, but they advertise they are sharp, (they resharpen them themselves) and stay sharp, and people that own them have said they like them. I own the Sears, and would recommend Lee Valley.
I sharpen my own twist drills, not a clue how to sharpen brad points, so get ones that are sharp and stay sharp, and only use them when needed.