Dave Franco doesn't bring anything new to the horror genre with his feature film directorial debut (which he also wrote) but he does provide an entertaining hour and a half (give or take) in this film about two couples who have booked into an AirBnB type property, only to discover a number of hidden cameras around the building.
Acting is decent enough and another good film for Dan Stevens' ever growing resume. Take this film as intended (a fun thriller - popcorn movie) and you will be entertained enough. Go in looking for the deep and meaningful and you'll hate it.
Ignore the reviews stating it is "pointless" - they clearly expected too much.