I prefer OSM to Google Maps when looking at maps. You get better maps with more detail. But, I have to back to GM to find anything with an address. The business database on OSM is poor, and I don't think the system for estimating the location of an address on a street has been particularly good either.
They were terrible years ago on GM, so this is part of the evolution. But I can see how OSM will end up better than GM, like Wikipedia over Encyclopedia Brittanica, but it needs a bit more to get there.
Btw: the online process to make changes on OSM is wonderful and encouraging.