I bought a hi-point 9mm pistol and a carbine last year. Both need good lubrication and the pistol needed about 300 rounds through it to be fully reliable (about 1 per 20 failure-to-feed stoppages until then). I also found that the pistol likes Remington better than Federal ammo, not saying one is better than the other, just for my gun.
The one thing I don't like about the pistol is the primitive safety, just one at the thumb, which to my mind can be easily slid off by mistake if carried. Because of this I never jack a round until I'm ready to shoot, which makes it less than ideal for carry. It's also bulky and unbalanced, and the best mag you can get is a 10-round straight stack. But for the price, for plinking or home defense, you can't beat it. I bought it new for about $150 on an army post PX. I keep Hornady Critical Defense in it away from the range.
The 9mm carbine is a real bargain, IMO. If lubricated properly it has had no problems or stoppages, and is dead accurate at 50 meters with 9mm ammo, still pretty good at 100M. It was about $225. The mags from the carbine can go into the pistol, but not vice-versa. Unfortunately the largest mag for the carbine is also only a 10-round straight stack.