I would actually give this a 4.5 if I could, see the Cons
Pros:
-Clever & easy to attach bikes to the rack. Road, gravel, EMtb = 0 problems.
-Looks great/modern
-Lightweight & compact
-Anti-wobble does it exactly
-Integrated lock on handle is rad (although when parked out of sight I put an extra cable lock as a visual detergent)
-Customer Support has been great
Neutral:
-Is low & long, so you have to careful about scraping. When driving around with it folded I worry a car behind me not seeing it. On the upside. the bikes sit lower and gives you some extra visibility out your back window.
-No 2" version. From the hitch to rack, I get no flex or wobble but I still would like a 2" bar holding everything together as an option.
-Attaching a cable lock requires a very long lock to make it around bike and under hitch to the loop.
Cons:
-It wobbles/flexes at the pivot joint. On the freeway when I hit bumpy roads or a dip, I notice cars behind me move away real quick. It really jumps around. I think some brands do more flex/wobble than others. I contacted Saris and they told me how to torque the pivot, and it helps but it's still more than I would like.