My EU2000 worked fine without the Easy Start, but I put one in anyway.
The AC starts up much happier now.
You’re going to be fine until:
1) You get up around 5000 ft elevation. Lower power output...
2) It’s blistering hot out. I’m told the AC works harder, overloading the generator, although I have no direct experience...
3) You want to run other high watt appliances. Hair dryer, coffee maker, microwave, water heater...
So the bottom line is, you’ll be fine, until you’re not.
2017 FC 27FB
2017 F250 Lariat Crew Cab 6.2L