My understanding is that there are two different mounting plates depending on which model/bumper your Jeep came with.
I had the Currie set up on my previous JK and it worked beautifully. I liked how the towbar mounts were below the bumper, so I didn't have as tall of a riser to tow my lifted Jeep.
The Currie was not available yet when I bought the Gladiator, so I went with the Maximus-3 towbar mounts.
Let me clarify why it didn’t fit. I have the steel bumper and it didn’t fit because of the winch plate (I have a Warn plate). If you didn’t have a winch plate it would fit. It was a very solid piece and i really liked it because it could be quickly installed and removed so i could remove it once i got to my destination. I really didn’t want anything hanging down from the bumper.
I wound up with the Maximus-3 towbar mounts. They are also very nice, but not quickly removable. However and added benefit is the ability to put a closed loop shackle on the front now.
I don’t think you could go wrong with either one depending on your situation.