I have Here Maps on my Nokia and would say it is quite the opposite of abysmal. There are two products - Maps and Drive. Drive gives you turn by turn navigation that works very well for me. The one great thing that differentiates Here Maps and Drive is that you download the map data for whatever country you want and it works offline so you don't need a signal and you don't incur data charges to use it. The quality of the mapping is second to none and is updated regularly.