soooooo the GPS issue doesn't seem to be an issue lest your standing still when it miss-locates :O
i just field tested the GPS on a small journey to a class trip location. i cleared my maps and browser gps info first and located while stationary to make sure it could locate me right

then the little over half hour drive it tracked me 100% accurate
only issue i had was when driving back, lost GPS connection for a while because someone called and it interrupted my signal for some reason >.> but cutting gps off and on for a half second each did the trick
EDIT!______
it was able to use the full gps as well of the app, points of interest, location down to exact Long/lat, speed traveling, speed limit of current located road, and traffic in area. c:
navigation app i used was Navigon