All evidence points towards them being good, reliable, inexpensive firearms.
That being said, I neither own one, nor do I plan on owning one. Furthermore, I wouldn't really recommend them either, simply because you can get firearms of significantly higher quality on the surplus market for roughly the same price or just a bit higher, so I just can't see recommending a Hi-Point C9 over say a Tokarev, Makarov PM, or some other high quality surplus pistols. Furthermore, you can often find some insanely good values on police trade-in pistols for maybe $99-$125 more than a Hi-Point, but you're getting so much more gun for the money. So I'd sooner recommend that someone save up a bit more money and get a police trade-in M&P or Glock than buy a Hi-Point.
Honestly, even if someone asked me who felt that they needed a firearm immediately, anticipating an imminent threat, I would sooner offer to loan them the difference for a surplus/police trade-in pistol. Heck, I would sooner recommend that they spend their money on a Heritage Arms Rough Rider in .22 Magnum, simply because it's a much nicer gun which breaks down much easier than a Hi-Point.
That being said, they do seem to be reliable pistols, so if absolutely no other option were available, then a Hi-Point would suffice, but even now, in the midst of a Global Pandemic in which folks are panic-buying guns and ammunition like crazy, you can still find other inexpensive guns like the Rough Rider, Taurus G2, Ruger LCP, EC9s, S&W SD, then there are surplus Tokarev pistols, and even police trade-in pistols pop up from time to time.
Oh, and I'm not being a snob either... I carry a Sigma, for crying out loud, which is basically just a step up from a Hi-Point! So I'm not putting down Hi-Point, just saying there are better options for roughly the same price.
Still, if you want a Hi-Point, then by all means get one, it'll do it's job just fine.