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The Maestro 3100 can calculate routes based on fastest time, shortest distance, least or most use of freeways, and without toll roads. There's a route simulator to give you a running demo of the trip, as well as a detour option if you want to avoid a certain portion of the route. The system provides text- and voice-guided turn-by-turn directions, but unfortunately, the basic 3100 doesn't support Magellan's SayWhere text-to-speech feature. This means the system won't speak actual street names but will give you more generic directions like "Turn right in 0.5 miles." We do like that the unit will alert you to an upcoming turn with a chime (or bell or beep). If you do happen to miss a turn, you can rest easy, as the Maestro does automatic route recalculation.
The 3100 offers several map screens. First off, you get your choice of 2D (north up or tracking up) or 3D map modes with night or day color. In addition to that, you can get just a list of maneuvers or a split-screen view that shows both your 3D map and your next maneuver. We particularly liked this screen, as it gave us a better view of the next turn, which can sometimes get lost with the smaller text and icons when in map view alone.
The Magellan Maestro 3100 points of interest (POI) database contains 750,000 entries, which isn't quite as robust as other systems in terms of numbers. You do get all the major categories, including gas stations, ATMs, and restaurants by cuisine type. You can drill down to more specific interests, as well, with more specific POIs, such as museums, coffee shops, and sports stadiums. American Automobile Association members may be disappointed to learn that the 3100 doesn't have the AAA features found on the Maestro 4040, meaning you can't access information for AAA-approved auto repair facilities, AAA Diamond-rated lodging and restaurants, and more, from the device. There is a nice safety feature, though. If you need roadside assistance for any reason, you can tap on the tow truck icon on the main menu page and get your exact location, closest intersection, longitude and latitude coordinates, and other information, for easy reference.
The Magellan Maestro 3100 got off to a bit of a rocky start when we first fired up the device. We went through the typical setup procedures of picking our time zone, units of measure, and accepting the user agreement. However, at the end of this process, the system froze on us and we had to restart the device. This happened two more times before we actually got to the Main Menu page--not good.
We took the Maestro 3100 for a test-drive in San Francisco, and from a cold start, it took about 2 minutes for the unit to get a GPS fix under cloudy skies; subsequent starts were faster. It was able to retain a strong lock as we drove throughout the city and accurately pinpointed our location. We also programmed our standard trip from the Marina district of San Francisco to CNET's downtown headquarters. The 3100 returned with directions in less than a minute, but route recalculations were a little more sporadic. For the most part, the system generated a new route quickly, but there were several times where we missed a turn because the 3100 instructed us to take the next street just as we drove past it. The Magellan Maestro 3100's battery is rated for 3 hours (with the backlight at the dimmest setting), which is on the low side.