No issues with either application at my end. Actually, I appreciate the simplicity of Nokia Maps. They works just okay for simple nav/orientation in a city. In such a case less thrills/higher simplicity - the better. I live in a big European city though, so the maps are accurate and up to date. No idea about less 'popular' areas or the States.

Same applies to Nokia Drive. Info is accurate in my city, GPS connection never drops and the application ends up being quite accurate.