I've tried using it over the years but I never liked it because there was no information. So last night I looked at my local city and there is almost no information at all. I spent a few hours last night adding buildings and restaurants and removing incorrect items. It was actually kind of fun and therapeutic and I plan to do more of it tonight. My girlfriend thinks it's dumb and I'm wasting my time because Google maps and Apple maps and Bing maps exists but she just doesn't understand open source.
Edit: Apologies, I just realized this question is not Linux specific.
I don't love their directions but it's a cool map and nice to have open source competition. I've contributed a few small things. One of them even made it into Google maps lol.
Oh well they definitely do. I added a very small (like 3 meters long) foot path connecting the local rail trail and a road. It's not a real path irl, but the power lines go through that intersection perpendicularly, and you can sort of use the right of way to cut between the two. Maybe a week or two after I added it on OSM it showed up on Google maps.