I truly enjoyed the film, especially the concept of them not being able to speak, or the loss of one sense, featured in other films such as Birdbox and Hush.
The characters are involving and emotional, allowing me to sympathize with them. The only critique for the film is (spoiler) the part where a man yells, putting the son and father in danger. It was quite random and served no meaning other than that more people survived. It would have been interesting to see this concept explored further or changed.