I bought a Hi-Point C-9 many years ago, just see if they were as bad as one guy in particular on the internet said they were. The one I got wasn't bad at all. It just chugged along sending whatever FMJ 9mm ammo that was on sale that week down range. American Eagle, Winchester White Box, Blazer Brass, Remington UMC, range reloads...Even a few hollowpoints. Hit the target about as well as any other gun I was shooting back then.
I "field stripped" it once, and decided never again. After that I cleaned it with WD-40, and paper towels, used a pencil for a cleaning rod, and used Q-tips around the ejection port/feed ramp area to clean what I could reach. It worked.
Kept it a couple of years, put about 2000 rounds through it. I had a half-dozen malfunctions in that time, and four of them came out of one box of "range reloads". It still looked the same as the day I got it. By then I was bored with it, and sold it for more than I paid for it, and had a half dozen or so "I'll take it if he doesn't" offers standing in line.
I've thought about buying another, just for grins and giggles, but I've already got too many guns I don't have time to shoot.