CRAFTSMAN 3,000-Watt Gas-Powered Portable Generator

Bought this 5 months prior to needing it, but started using it on my OTR truck in November 2022. Regular oil and spark plug changes every month. This is August 2023, and for the past couple months it has been very erratic running. Some days great, other days not worth a crap. Some days doesn't wanna start, other days wants to run wide open throttle. Kinda hard to pinpoint any one thing with that much all over the place running. In a nutshell, I've gotten 6 good months out of it, running approximately 10 or so hours a night, 3-4 nights a week. That's garbage in my opinion.