I've driven around with this for about 1000 miles so far, through mountains, cities, and potholes. My review thus far...
I bought this because I wanted a platform-type hitch-mounted rack that lockable and was sufficiently lightweight that one person could mount/dismount it easily. It certainly meets those requirements and some. I only mount my cyclocross and my wife's road bikes on this, so it's hardly taxed in terms of tire size and bike weight but it looks like it could handle a fat tire bike pretty easily.
Security: I like that the bike frame locks to the rack and the rack locks to the hitch via a threaded pin (see the user manual). I wouldn't leave the bike locked overnight, but probably OK for a quick restaurant stop, and I was able to U-lock both wheels to the transverse beam on the rack with no problem. Someone could cut through the rack and frame if they were really committed to theft.
Convenience: It folds flat and then rocks up to the car to save space and travel without a bike on it. Thanks to my hitch location, mine just clears the trunk of my car (not an SUV) so I don't have to lower the rack to open the trunk. I had no problem positioning 2 cx/road bikes on these facing opposite directions.
Weight: Very manageable by one person. Only takes the one tool that Thule provides (just a hex wrench--see the user manual) to remove the unlocked hitch mount.
Tires: There are grooves for skinny tires in the tire trays. The trays can be positioned anywhere along the beam to match each bike's layout.
Simon the Peruvian