Both. They did get a foothold from the acquisition of NAVTEQ but a lot of missing features such as real-time traffic, street view and satellite imagery needed to be integrated. This was completed with the help from Bing.
The offline maps is truly a blessing. Running low on battery but still en route? Switch off 4G and Wifi, the biggest battery suckers, and the navigation still works without any hiccup. The last time I was visiting a foreign country and had no data service, it came in handy too.