I'd steer clear of "caliper covers." They tend to insulate - holding the heat on the brakes instead of allowing them to cool, and can cause premature brake fade and glazing as the heat builds up faster. Keep them open, paint them if you like the color change, or if you want to waste a ton of...
We use the Curt Echo on our '20 Ranger XLT (with factory tow package) with zero issues. We had previously used it in our E-Pace, also with no issues. We travel with 2 other couples that also use the Curt Echo. Kudos to such an easy solution.
The tongue weight fully loaded on this trailer is only 356 pounds. We load about 60-70% in the front of the trailer. I was pulling this with a 2020 Jaguar E-Pace that did, well, OK, but I could tell it was back there. I traded up to the Ranger with factory tow package, and can barely tell...