It’s hit and miss with all the ones I’ve tried. One option is to consult multiple models and see what they agree on. But if they’ve all ingested the same kind of training data they may make some of the same mistakes so you still can’t just trust the results. You have to use your own judgement in the end.
That said, they can raise things you didn’t think about. They’re not great the big picture things though, so again it comes down to your own judgement.
Never heard of them. Is this a generic beige box PC-compatible desktop? There were thousands of those brands in the 1990s, just small shops building PCs from standard parts and sticking their badge on the box.