I have the SpeeCo Quick Hitch from TSC. One store had it priced at $180, but were out of the Cat 2 size, so I drove to another store and got it for $169 -- probably just paid for the fuel, but I had made up my mind to get one /w3tcompact/icons/smile.gif.
None of my implements would work with the upper hook -- the angle support below the hitch pin interferes, so I use the adapter also. It does make it easier to hook up by myself, but still requires a little juggling to get lined up right and fooling with the 3-pt lift lever and/or top link length to get the pins to slide in and out easily. Still much better than without it. It helps to have the adapters or at least Cat 2-3 bushings in the lower pins to better fill the lower hooks. Otherwise, there is quite a bit of slop. May or may not result in unusual wear. The bushings are a lot cheaper ($3 pair vs. $21 for the permanent adapters), but having the permanent adapters mounted avoids having to use locking pins in the ends of the lower hitch pins.
Overall, I am happy that I got the Quick Hitch. I am too old and weak to manhandle those implements around to get the pins lined up with the 3-pt. lift arms. My language has cleaned up also /w3tcompact/icons/grin.gif.