The image and sound quality is not great(or even good) for any of the movies, but based on Mart's review, this version of Maniac is probably the best you'll find. For the money...why not. I'll just add to what Mart wrote.

Maniac: Nudity, women in lingerie and eyeball eating. In the credits Phyllis Diller is listed.
A World Gone Mad: Good acting and a funny phone call scene involing diminishing returns.
A Shriek...: Ginger Rogers-pretty and young. Falling bodies.

Not a bad buy, not at all. The most important thing: you'll get a decent copy of the unforgettably trashy The Maniac, which is garbage of the highest rating and provides many a good laughs for the one who dares watch it. The copy here is much better than on some other releases. The other two movies: The World Gone Mad is definitely no horror, more like a political corruption/murder tale. There are some quite good actors, the copy is quite good too, but nevertheless this is an entirely missable flick. A Shriek In The Night is a witty little murder mystery as well (fancy having these items on a horror collection), the copy passable, the story plausibly constructed, and by bits it can evoke some interest and even stir some moderate excitement. The main attraction however is the very young Ginger Rogers in probably her first starring role - and completely straight (meaning no singing-dancing involved). She doesn't yet look as lovely as she became a few years later, but it's fun to see how the studio obviously was uncertain what kind of material she should be used in - perhaps they deemed her another Fay Wray (who by that time - 1933 - had probably screamed her loudest screams). Miss Rogers gives a perfectly wonderful performance, though even she doesn't feel comfortable playing against the comic relief, elderly nutty housemaid. If you're a fan of hers, you won't regret buying this DVD just to watch her ACT and be convinced of her huge talent, although I trust you knew that already.