I have very fond memories of Demon Knight from the days of the active horror community on Tumblr. I don't know if this is "good", but must a movie be "good"? Can we not simply have BIlly Zane wearing sunglasses in the dark, commanding his squad of practical effect demon puppets, and call it a day?
Sidenote: I know this is a Tales from the Crypt movie, but I would happily have given up the Cryptkeeper bookends for 5 more minutes of the actually story, silly as it is.
Final rating:★★★ - I liked it. Would personally recommend you give it a go.