I bought a 26 qt. ORCA, and it fit in the galley (the only difference is that the counter doors would not stay propped open with the ORCA in place. It is a small cooler, but it worked fine for two people on a 5 day trip. We stayed in a campground outside of Durango in July. Outside temperatures reached 90 F. We still had ice when we got home, and I did not worry about any of our food spoiling. We did not open the cooler frequently throughout the day. We opened it to prepare breakfast and make our lunches, and then again in the evening when we were cooking dinner.
I bought the ORCA because it does really well in comparison tests for ice retention and bear resistance, and was hundreds less expensive than the Yeti. I believe it is also manufactured in the U.S., which I also like. The interior of the ORCA is smaller than the Coleman, but it also needed less ice and kept things cooler longer, so I would say it was a net benefit.
I initially was thinking that a refrigerator cooler was important, but having camped in ours several times over the past year, I have to say that I am glad not to be spending battery life on a refrigerator, as we haven't needed it.