You can count on the quality of the sets, props, and atmosphere to be top-notch at Escape the Netherworld, and the Alien Terror room is no exception. There are a couple of clunky puzzles in the beginning section, but once you get into the main part of the room everything flows really well and the integration of the puzzles and the environment is very good. The experience is on the intense side for an escape room -- there is extensive use of smoke/fog, strobe lighting, loud noises, total darkness (briefly), some moderate body horror / gore, and a few jump scares -- so really pay attention to the warnings on their website, because pretty much everything they describe on their website happens in the room. But as long as you're okay with all of that stuff, the room does not disappoint. Recommended.