I have so much to say here, especially when it comes to OSM vs Google Maps (given that the whole project was originally an offshoot of Google's Geo division) but I also have an NDA that I need to go read carefully. It's definitely not my intent to accidentally break confidentiality.
I do want to say how amazing OSM was. There are SO MANY weird laws in different countries and OSM was a fantastic source of data in many of them. One example is South Korea - there were laws from decades ago that made it very difficult legally to have detailed maps of many parts of south korea - the OSM maps there were far superior to anything else available.