Mike, welcome to the Forum and the full time life.
The good news is that hasn't been any issues with our new fridge. We have learned a few more things about doing the install which I'll share here.
The new fridge is a tad smaller than the old unit. This is because the old unit has a 1" metal flange that sits against the face of the cabinet opening to help seal against propane gas intrusion. We found that the gap (about 3/8" on the left and right side) allowed a ton of cold air and noise into the RV which was unacceptable.
Out solution was to purchase door seal gasket material like this https://tinyurl.com/yd8m9t7s
and fasten it to the inside of the opening. The idea is to push the new fridge in through the gasket closing off the gap. We used very short truss head screws to secure the gasket. Don't be afraid to make the gasket stick out into the opening, it's very pliable and we had no problem getting the fridge into the space.
At the top and the bottom of the fridge the gap is much larger, almost an in at the bottom and about an 1 1/2 at the top. We use 1" grey foam pipe insulation to fill these gaps.
The new fridge has a top and bottom mounting flange that does a good job of covering those gaps, but the gaps at the sides were quite visible. We purchased black plastic corner molding off eBay https://tinyurl.com/yawdgops
and used it to fill in the gap. It looks much like the installation of the original unit.
A note about the electrical connection. Your old unit probably has a 12 or 14 ga wire feeding the 12v power. You'll likely need to increase the size of the wire to a 10 ga for runs less than 20 feet. 12 ga wire is supposedly good for 13'. Keep in mind that the longer the wire, the more voltage drop you'll experience and RV makers are notorious for having long wire runs. You also want to change the fridge fuse to a 20 amp fuse.
Before you slide the unit into the opening we suggest that you place the shelves where you'll want them placed. A gotcha is that the door has to be fully opened to get the shelves out. If you door swings against a wall as ours does the shelves simply can't be moved (learned the hard way on this one).
One more thing to check is that the doors are level and close easily. We reversed our doors (easy to do) and had to play with the alignment a bit to make the latches work properly. The problem with aligning the doors once the unit is installed is that you can't get to the hinge bolts as they are behind the mounting flange.
We don't have a good feel yet for how much battery power this unit will use over the average day, not how the cooling performance will be on really hot days.
The new fridge does a nice job of staying cool and frost free. The freezer seems to build up a bit of frost on the items kept there but none on the walls.
Hope this helps.
'04 American Tradition