I only think its 5 Star because it fits the criteria, it's not particularly easy to use compared to old Moore and Wright examples. On the other hand once you set it and tighten the lock nut on the tap it won't undo like old ones sometimes do while tapping.
It certainly is GOOD VALUE and I am glad I have this pair of Tap Wrenches, However I might apply orange paint to both ends as they are so black finished they are hard to see.