Rockee, we tow it with a Ford F150 with the 3.6 ecoboost engine. This is gross overkill, but the truck was what we used to tow our 5th wheel, before we got tired of "driving a semi" and went to the A122S. As the truck only had about 16,000 miles on it, it made absolutely no sense to trade it. Plus, we like to take lots of "stuff" with us when we go, and that 6 -1/2 ft truck bed provides lots of space. Towing, we've had as little as 14.2 mpg and as much as 18 (compared to the 8 - 9.2 towing the 5th wheel). We bought the A122S with the mutual understanding that, if we liked it, we would up-grade to the 213HW. The short story is that we liked it a lot and found the increased space, greater storage area, larger refrigerator, and built-in potty to be just what we wanted. In addition, my wife was getting a back ache from bending over the galley counter when making meals and washing dishes. The A213's higher counter top has taken care of that as well. Our's has the two bunks on each side of the aft end of the trailer (with the connecting cushion that turns them into a "king" size bed. We prefer the two bunks. In the 122, we seldom used the dinette and kept it configured into a bed. I should add that, when we bought the 122, we also bought the screen room that attaches to it and effectively doubles the living space. When we up-graded to the 213, we were going to sell the screen room until we discovered that it could also be used with the 213 (with some tailoring of the mesh screen that closes off the screen room from the open space under the trailer.
As for things we don't like or problems with the trailer, we bought it late in the season and only made a couple of trips in the HW before laying it up for the winter. One thing we did discover, and you might want to watch out for: Forest River strung a common water hose diagonally across the underside of the camper to supply water to the toilet. I discovered this when I noticed a leak under the camper when it was in my driveway. When I got underneath, I discovered that hose just sort of draped across the trailer bottom. When it neared the toilet end of it, the guy who installed it routed it through a hole in the frame and up to the toilet, putting a sharp bend in the hose that backed up the water, causing a bubble to form in the hose that had begun to leak. Propriety prevents me from telling you what I said when I discovered this stupid arrangement. I didn't want to completely replace the entire hose, so I cut out the damaged segment, installed hose joints at each cut end and replaced the cut out segment with new hose clamped tight. Then I re-routed the thing and used plastic ties to secure the hose to the trailer at several points so that it no longer hung down free. The way it came to me from the factory, it could have been snagged and torn loose, which would really have been a problem.
Other than that hose glitch, we like the trailer and look forward to a lot of years camping in it. Hope this helps.