I don't have google maps on my phone at all unless I visit in the browser, and I use OSM through Magic Earth. I wouldn't go back, but it is a huge pain and sometimes I do have to just open google maps in a browser window. It doesn't usually have hours of operation, doesn't usually have links to websites. It can't find businesses by name easily (it often seems to require the exact name to by typed in), and it definitely can't find businesses by service (searching for "sandwiches" will not show you a list of local sandwich shops, it will do something like teleport you to a street called "Sandwiches" in Ireland). And even if I have the exact address, I will still sometimes end of thousands of miles away or with no hits because the street name was written differently. Honestly, it's of very little use to me because it can rarely take me to a new place.