This table is okay, but it doesn't really add much that a decent DM could just improvise on the spot. It basically consists of junk (chairs, pillows, cans of worms), infernal machine parts and additions, and miscellaneous stuff like demon parts. None of the infernal machine parts or demon parts have descriptions explaining what use they might have, and none of them are existing addons in Descent to Avernus, such as infernal screamers or bile sprayers, so they're all up for interpretation. It could be useful if you need some inspiration while running Avernus, but to be honest, it's probably not worth more than a dollar.