We are thinking of going that route ourselves since so many manufacturers have them inside their new RVs regardless if it's a class A, 5er or TT. Our current rig that we purchased new 8 years ago has an Dometic fridge, it has performed flawlessly whether it's freezing or 100 degrees outside, guess our unit was installed properly at the factory.
Should our absorption fridge give out we may go with a residential fridge since we already have generator, solar, and a couple of inverters from all the camping off the grid we do. Get whatever RV you want as most any TT, 5er, and of course class A can be optioned with either type of fridge, definitely not a deal breaker by any means. Enjoy your new rig!!!