I've had a 1Up Super-Duty with ramp and all the bells/whistles.
If it got stolen, I would NOT automatically re-buy it, especially at the total price point I paid. I'd look at the Saris MTB, especially since the ramps don't need kludgy taking the arms apart to work. Loading bikes is literally a 3-hand job (so I use my shoulder). You need 2 hands to open up the 1Up's arms and you need a third hand/shoulder to hold the bike in place until you do. And while pushing the arms into place is a 1 hand job, with the ramp you have to re-assemble the arm after the bike is up, so you need to be sure the other arm was positioned exactly right when you rolled the bike up in the first place. Ugh. The ramp is exactly 3" wide, so 3" wide tires are a tight fit. When you roll the second bike in, the handlebars hit the handlebars of the first bike, so you're tiling the bike and the front tire isn't held in-line when it's on the platform. Ugh. The release mechanism to pivot the rack for storage or rear car access is in a hard to reach place, and if you spend money for the extension handle it doesn't operate smoothly. The whole thing feels like some backyard mechanic designed and built it - a really good backyard mechanic, mind you, but the whole thing just doesn't work for e-bikes that well.
The Saris MTB's arms are one-hand operated in or out. They swing all the way down so you can put the ramp on without disassembling anything. That said, I do feel the way the 1Up attaches to the hitch is really really good - solid and adjustable. I haven't actually tried the MTB out in person, so maybe I'd be disappointed in it as well.
My old Saris Cycle-On Pro is a great rack - just that with two Boost-spaced bikes the hold down arm of the first bike would hit the rear frame of the second bike. Had I known the 1Up wasn't going to be a great solution, I probably would have saved the money and just kept using the foam pads and bungie cords to protect the frame. I do have it for sale - it holds one Aurora LTD just fine and a second bike that isn't Boost should also be fine.