Yes, it was very good, but...

Rating: 6/10 (18 July 2018)

A few minutes into the film I asked myself "What the hell am I watching" and thought the characters were completely dysfunctional. Then it hit me BAM!! what was going on and it became very, very interesting. Once mother and son were rescued, though, the film became slow moving and a bit depressing, actually, with constant yelling and sadness.
The script and acting was superb, I'll admit. Jacob Tremblay in particular was excellent! It was interesting how the Room held good memories for the son, while it was an absolute nightmare for the mother.