one of the things I didn't notice at the time was that one of the pedals was cracked. My son rides hard, so it was evident after he used it for a while.
I picked up this set, and I didn't realize that they're different (check which one goes on which side!) -- thankfully I did put the right one on for the damaged pedal. I decided to hold onto the other one to see how this held up and because the other stock pedal seemed fine. So far, so good.