I look forward to hearing about your experience, particularly keeping the total weight within spec, since I am looking at the 2020 Micro Mini 2108DS that weighs slightly more.
We've been out six times in the 2106FBS since July, with trips under 115 miles one-way. We've not been real diligent on weight management. We typically drive no faster than 60 mph. The Ascent behaves well, and the Tekonsha brake controller does its job. I use the brake controller for "sense of security" on steep downhills, but have only had to use it once for a quick stop on a highway. I keep the controller setting at 7.0, but that may be a little too high (6.5 might be fine, I just like round numbers

).
The Ascent does hills OK with the Micro Minnie, but it definitely labors more than on flats. Maintaining consistent speed becomes the trick on hills.
While I love the Ascent, I can definitively say that if I had to do it again I probably would get a pickup truck. Mostly for some additional benefits of the truck bed (ex. ability to bring along a generator and fuel for bookdocking), but also b/c I think it would be better overall handling of the trailer on the road.