A few thoughts: Arguably the oldest movie that's still generally considered one the worst of all-time, a disasterpiece of epic proportions, this film written, directed and produced by Edward D. Wood, Jr. still stands as one of the most inept and hilariously bad movies ever made. A gold standard in poor filmmaking decisions and bafflingly blunt and over-written '50s dialogue, everything about this movie screams "calculated failure". But Wood believed he was making worthwhile pictures, which makes it all the more endearing and humorous; filmmakers this inherently awful don't come by every day. This movie is legendary, and watching it again still makes for some great entertainment. The effects are as fake as you can get, the sets are obviously made from cardboard and spray paint, and none of the actors seem to have any clue how to deliver dialogue in a way that even comes close to appearing human -- especially not the human characters. It's a mad, muddled mess and I couldn't recommend it enough.
Who would I recommend it to? Just watch it, even if you don't like bad movies -- you might learn a thing or two. Pure Z-grade sci-fi/horror fun.