Replying to Canon 40mm STM review?

Been seeing this lens listed fairly cheap lately, wondering if anyone here uses it and either likes or dislikes it. I will be using it on a 5dc, and it looked like it would be good for taking small group photos, some indoor shots, things like that. AF/price/it being wider than a 50 makes me think it would be perfect to put on the camera and pass it around to friends to get some cool shots. Nothing that would get published, but just to get some good pictures of all of us on weekend trips. Wondering what you guys think.