I came to the conclusion that free maps are simply what you pay for. In most places Google Maps have proven to be incomplete / inaccurate. Apple made it worse and now Nokia has to prove that there is always another low. HERE is terrible on the iPhone 5. Icons/pictograms are almost unreadable and do not scale up, POI list is garbage, loading is slow (even on LTE) and public transportation data is completely random. This is junk.
I stay with Navigon's paid software with real accurate maps (here in Europe), reliable traffic and obstruction data, valid POI lists, accurate public transport data, lane assistant that works and a true turn-by-turn display optimized for driving (which Nokia's isn't).
Just not sure why Nokia's fanboys have been raving about their superior maps so loudly... They certainly have never tried anything good.