We used one on our previous camper. We liked it. However, it wasnt perfect. We had one that broke. We replaced it with a new one, so I dont want to make it seem like I am bad mouthing it. It worked as advertised.
My personal opinion, the issue with my particular unit was from using a bike cover. We would mount the bikes on the rack, put the cover on the bikes, and off we went. We did this everytime. I think the cover created a very large amount of wind resistance. Not sure exactly when it failed, but at one point I looked in the rear view mirror and saw that something was wrong with the bikes. It was as if someone pushed the bikes straight back (front of the trailer toward rear of trailer) and pushed them right up against the front. The bikes didnt fall off, there was no issue other than needing a new Jack-It (which we did get). I have never heard of anyone else having a failure, but that was our experience. That was the one and only issue we had with it.
I would suggest ratcheting straps, and a whole bunch of pool noodles. The noodles can be placed strategically to help prevent rubbing. The bikes will have a tendency to rub against the jack it, and wear through the paint and begin to gouge the metal. So we would cut 12" sections of the noodles, and slice it like a hotdog bun. Then fit the noodles around the bike frame, forks, etc. Strap the bikes together with the straps, and we never saw any more "wear spots" on the bikes
2019 Ford F250 Lariat 6.7 Powerstroke
2020 Cherokee Arctic Wolf 287BH