I've never seen the Harbor Freight myself. I cannot find any ratings for it, not from Sold Secure or any other independent rating system that I usually check. That can be simply because it's not available here. It costs USD 7,87. Harbor Freight offer very little information, and a quick googling found no additional info in the 'Net.
If you can find it rated somewhere by an independent body - insurance company etc, that should give you an idea on how it compares to other locks in your market. With what little info is available, it's not in the same class with Abus, Kryptonite or other higher end locks.
--J