We just had one installed July 15th. We had a Dometic rm2862.
I was pretty worried about having problems with it, being as every rv we have owned has had a Dometic, and all the nightmare stories about Norcold.
It fit into the same spot perfectly.
I am VERY happy with the extra room compared to the 8 cu.
The freezer ( no ice maker ) has about 3x the space, and the fridge about 2x the space.
It was an expensive upgrade, but for us, it was well worth it.
Here on the Oregon Coast, I have had to keep it at 1-2, whereas my Dometic it would range between 6-7. We did put a fan on the fins, but have to either add a bigger one, or another one, since it is pretty humid here.
I cannot vouch for high elevation yet. Will be going cross country through very high elevations in 2 weeks. I heard the Norcold has elevation issues.
Time will tell, but as of now, I love the extra room.
Safe Travels
Cheryl