My 1up (Super Duty double) rack arrived pretty quickly, within 2 weeks of ordering - might have even been less, but was traveling out of state, so just now had time to pull it out.
General impressions are good so far.
I did buy a bunch of accessories, preferring to 'do it now.'
The wheel locks are a bit $ at around $20 each, but as we do travel, even when stopping for lunch or dinner, any added protection is welcome, and they just slot into the rack holes, fit tightly, and are quick to pop in and remove, so I don't regret buying 4 of them. (When we overnight, the bikes are in the room with us).
Whomever said pool noodle for the fender protector is spot on - it's either a pool noodle or thick pipe insulation with a roll of velcro on it.
Pass on the fender protector if you can get a piece of 3/4" pipe insulation or a pool noodle and are really trying to save a couple of dollars. Regardless it works fine on my wife's Gazelle rear fender.
Likewise, their velcro straps are fine, but pretty much the same thing I bought a dozen for $10 on Amazon vs $4 each.
The Rack Stash IMO is worth the $60, although with a bit of creativity, a drill and a welder, I'm sure one could be knocked out from a cut-down receiver hitch. Sometimes it's worth a few $ to gain the time back, though - it's simple, comes with a few lag bolts, and lets you 'mount' the rack for storage on a wall.
As the rack comes, looks like it can go to ~3" tires before needing their spacer kit. I need to go measure exactly, but no problem with my Johnny Watt 27.5x2.8" tires on my Luna X2.
I did buy the 'wheel stop' kit ($50 each), thinking I might use it for long trips, especially for the Gazelle with the rear fender for some added security. I haven't played with or installed it as of yet.
The rack is front/back solid, but does have some lateral rotational movement - I guess I was expecting the ball and security screw to help act as anti-rattle/rotation.
They do give you 2 'security wrenches' which are allen keys with the center drilled out (like Torx security bits, but larger) - initially I wished they had also drilled the long end, but using the wrench normally (wider radius turning it) doesn't interfere/hit the rack, so it's fine.
I'll have to get some miles on it - some minor concerns on the 'roundness' of the detents the red lever locks to, but overall it seems solid, secure, etc. it folds up or out pretty quickly, and is pretty quick loading/unloading, even with the added wheel locks. With the pair of bikes on it, it seems like it could be a few inches longer overall, as I haven't quite gotten them to offset so there is zero interference - close but not quite as my X2's GX shifter is resting on the Gazelle's seat slightly, while there's not all that much room to move either left or right before the center of a wheel is at the edge. Going to give it another round or two for loading positions and see if I can't get each bike fully clear of the other.
On our vehicle at least (Mazda3), we can pretty much put the hitch fully into the receiver, and the bikes are held a bit tighter/closer in vs the Swagman Club eBike we had previously.
Overall I'm giving it a thumbs up, but want to get some more travel time on it yet.