I watched this dozens of times as a kid. Watching it again, it's not perfect: it has too many cheap scares, it's a bit of an Alien rip-off (in spite of having no aliens), and it looks like a cutscene from an old point-and-click game (which is a good thing and a bad thing). But, man, there's still a unique charm and sense of place that's uncomparable. Especially impressive considering it had production difficulties and was rushed to the screen. Give it a watch but be forgiving.