The main reason was I was buying from Costco. It was between Generac and two different Firmans, in the price range I was looking at. The one I ordered was the same wattage as the Generac but It had a direct 50amp hookup that the Generac didn't have. Same, exact price. It comes with a 3 year warranty and Costco backs their stuff pretty well so I can get another generator fairly easily if I have a problem.
There are definitely better generator sets. But for a portable 11400/9200-watt gen set that I can run 240 stuff off of, without adapters it was a winner.
Especially since the main usage will eventually be powering a shop I plan on building in a Conex.
I couldn't touch a Honda in that price range. I went for the best bang for the buck. Firmans have rated pretty well online and they were building Rigid and Kohler generators before they slapped their own names on the side.