I recently rented one from Home Depot despite the negative attitude of the rental guy (that it wouldn't run my 2014 9k A/C) HA! I did my research and guess what, it worked beautifully! Easy to start (one tug) and worked almost silently. The thing is you don't start it in ECO MODE, full on power is what you need. Now the newer 9k units might be a little more touchy as Coleman-Mach has made changes to the 9k, so that's iffy. If you have a newer model 9k, I'd rent one and see how it runs.
For me, it was just great. I ordered mine with miscellanies doodads and I look forward to running the genny when I'm without power. on trips I plan on taking!
I didn't have to throw any breakers. And you can't microwave when there's that much of a draw (just shut the A/C off and you can microwave)
So happy!
WoodGlue