I used mine this weekend. We went to Kansas City to a TSO concert downtown in the new Sprint Center, which is slated to replace Kemper Arena. Anyway, I have never been downtown in KC, only in the southern part of city twice. It was foggy, freezing drizzle, 20degrees, very low viz, etc etc. When we got out of the concert, it is like usual for events of large amounts of people, you get sent in all directions to get you out of there.
The little gal that lives in the gps unit told us what direction to turn, how far the turn was ahead, whether to turn or not at an intersection, etc. For instance she said to turn left in .5 miles then at .1 reminded again then it dinged just before the intersection to indicate this was the one she wanted. Right after that she would tell you whether your next turn was left, right or straight ahead and for how far ahead your next move was and would even announce the street and exit ramp names. Sometimes you have to turn left then immediately be in the proper lane to turn right in say a block or two, and the gps knows this and tells you.
Anyway it really helped us as like I said it was foggy and bad conditions and it really helped us get out of there quickly without all the backtracking to get the right street and on and off ramps located so we could get the heck outta dodge.