A secret room in the house where everything you wish for just appears. While the pitch is interesting, the scenario is not really exploiting it.

Yeah they get crazy, money (that they don't even try to use), great clothes, great food, famous art, etc. But they go over that in just a few days. While never [spoiler]even once taking something outside[/spoiler], really ? [spoiler]I mean it's not like the process takes a while, it disappears in a few seconds so that means they never did it even once! So what was the point of all this money ?[/spoiler]

Then comes the main and only story, Kate wishes for [spoiler]a kid[/spoiler]. And well, that's not very interesting. The final part, though totally expected, brings a little action and tension, but not enough to make it a good movie.

There could have been some research on how it works or where it comes from, but we're just being told that Matt is doing that, is obsessed by that even, that's it. No real insight on what he's doing or how or if he gets a lead or something, no history, no metaphysics stuff, nothing.

There could have been some exploration of what the room can do, ho far can it go, you can see the possibilities when Shane [spoiler]creates a whole outside[/spoiler], but not exploited either. Can it create things that do not exist ?

There could have been a price to pay that comes later. Nope.

There's a storyline with the previous owners of the house that could have led to interesting things just to find out that [spoiler]they did exactly the same thing[/spoiler], so not much interest here either.

So a great concept, but turns out the movie is barely using it, such a waste.