I actually think OpenStreetMaps have much more content. In my town Google shows roads and houses. OSM shows me everything down to fences, entrances, beach boardwalks, positions of every single trailer in our nearby tourist housing and more. This is critical when you're a delivery guy and you need to know where the entrance to the gated facility is. I used Waze to drive, and then OSM Viewer to walk. Even when you zoom in on an empty spot in Google, OSM shows type of land, elevation, where the trees are if there are any, who is the owner of the land if it's owned by a company. I also like that it shows what factories are called and their land border, instead of just unnamed boxes. Worked for me both in Ukraine and in Ireland.