It's very sturdy and easy to use, it attaches into your 2" trailer hitch receiver easily and securely (MUCH better than our Saris rack), without having to lie on your back to attach to low vehicles. I also like the locking mechanism to the hitch receiver that prevents theft, simple and secure, without an extra part to lose.
Our two e-bikes very rode well on our RV in this rack through a 6,000 mile journey that included at least 20 miles of washboard dirt roads. I re-tightened this rack to the hitch receiver just once during the trip. Otherwise the bikes moved very little. Getting the bikes on/off was pretty easy and the locking arms and back wheel straps held them well. The locking arms are simple to lock/unlock and are designed so you can use your body weight to tighten them, but they release easily when you want.
Minor Con: The included cable locks need to be longer to lock the entire bike (to prevent theft). We could only get the cable around the front wheel, only adequate if a bike fell off. We used these cable locks, but also bought a 12' cable and padlock to secure our two e-bikes from theft, attaching it through the rack's integrated lock loop.
Overall, it's a great rack! I'd say BEST rack on the market for securing e-bikes to an RV or trailer (we tried others).