Wikipedia is mostly accurate. Where it fails to be is on hot political issue, topical social issues with differing opinions, and the smearing of public figures especially if the wiki moderators don’t like you.
One the worst one for me is the climate change page. The overlords and toadies of climate propaganda do not allow any science debate on the page and if the “prevailing views” are challenged, the sycophants immediately erase any dissent.
For example, if you want to get the discography of a pop band or want to know what movies a favorite actor starred in, Wikipedia is the place to go for a quick answer. It's pretty hard to get political on compiling a list of books by John Grisham, for example, or a list of the world's tallest mountains.
I would not trust them on anything important however as the contributors tend to inject their political bias.