excellent use of jump cuts and tense jump scares. Credible ‘normal’ people dealing with super-scary alien monsters.
The alien monsters though? Sure, scary looks. But do they have super-sensitive hearing? Do they have bat-like echolocation? Well, that depends a little on the whims of the scene. Either way if you can suspend your disbelief you’ll find this a tense and exciting movie. If not then it’s a trope-ridden jump-scare-fest with monsters that would be in Scooby Doo if they were less gruesome.
I’ll ignore the patches of sand, the woeful soundproofing, the incredible undiscovered monster deterrent, and the nail in the step. That would detract from the fun.
Worth watching to see whether you find it scary or ridiculous.