There's something for everyone, whether you are into (1) Quebec's historical development ; (2) on-loan exhibits about Australian indigenous peoples ; (3) permanent exhibit about Quebec's own indigenous peoples, including plenty of mock-ups of wigwams, long-houses, etc ; (4) the physiology & psychology of your pet cats & dogs ; (5) the wonders of nanotech and ever more powerful microscopes ; or (6) the present state of international affairs through 25 recent world events.
The list seemed a bit too diverse to be real, but it isn't. The museum's exhibits truly ran that widely. It felt like it had something for everyone, each exhibit with plenty of room and decent lighting, and detailed written curating. (In-person guides were around.)
But some of the exhibits were more geared to children & family-friendliness than others. See the cats & dogs one, which on the day of visiting appeared by far to be the most popular & crowded. There wasn't a single live sample --- it's not a zoo, after all --- and yet it manages to say a lot about your favourite pet species of felines & canines through wall inscriptions, pictures, fold-up Q&As, and tonnes of cute animal videos. One could hardly ask for more.
Museum comes with an on-site cafe, free wifi, plenty of free sitting space if your legs get tired from all the exhibits.