Honestly, I’m not entirely sure what a ReadyWrench is, so I asked my husband, because he is smart in the ways of tools. His answer was: “It’s a funny version of a socket wrench, probably a good choice for someone with an occasional need. $20 is a nice price for it.”
He told me this in response to my pointing out that there’s one on Lightning Deal at Amazon right now for $20. So there you go.
I wouldn’t recommend this as a Valentine’s Day gift, necessarily (“Baby! You wrench me! Wait, no!”), but it’s a nice little deal if you’re in the market.