I have the four bike version of that and I am pretty happy with it.
It is hard to find four bike tow bar racks that are reasonably priced.
The bikes are secure when fitted and they supply plenty of extra straps.
One thing to be aware of is the minimum distance from the ball to your rear bumper, from memory it has to be 50mm (check, don’t take my word for it!). Mine was just under the minium measurement and it fits but there is only about 10mm clearance back to my bumper.
It took a while to set it up the first time but after that it can be fitted quite quickly. It has a clamp type mechanism that secures it to the ball and then a ‘U’ clamp that secures it to the neck of the tow hitch (secured with two nuts).
My only observation is that there is a little bit of side to side play which allows you to rack the rock slightly, not sure if that is that same on all racks of this format??
I can open my boot lid with it attached but it will also tilt (never done it though).