Accessories

Battery Died, Slow Processor
Battery died (discharges from full to empty in seconds) and processor continues to slow (while driving, the vehicle sometimes takes seconds to update, causing missed turns and erroneous details). Updated software to no avail. Sent Garmin tech suppt three emails; no response. On hold w/ tech support for more than 40min before quitting. Threw unit away.

Great tool that works as advertised
This was a holiday gift for my husband and he is very picky about electronics. He loves it! Large bright easy to read screen. Satellite pick up is satisfactory. Easy to understand voice with great detail. This thing blows my built-in Toyota navigation system away. Great price too

good, but not worth the money
I bought 760 because of the impressive set of features and the hype about its improved processor. I guess that the whole 7XX series is about the same.
Mounting: the standard mount is easy to use. I hope that the heavily used clip-on mechanism lasts for a long time. I also have a third-party charger that works through USB, but this turns navigation OFF.
Battery charge lasts as advertised.
User interface: very nice intuitive menus. I could use all the features without ever turning to the manual. Display is clear and changes modes according to the time of day. I wouldn't want to trade it for a smaller one. One minor complaint is that it always shows the arrival time: I would prefer "time left in transit" as an option.
Start-up: Satellite acquisition time is surprisingly variable: from seconds to several minutes. I have had very fast staring time in poor weather and between tall building, as well as very lengthy starts on a clear day with not obstacles. It first tries to position itself at the place where it has been turned off, which is a good idea only part of the time.
Entertainment features are nice to have, but a video player and third-party games would have been a welcome addition. Because these units are thief magnets, I wouldn't want to leave it in the car (my friend had his windshield broken by a GPS thief). The Garmin lock may inconvenience the thief (or you), but does not prevent the theft itself. If you have to carry the unit with you, it may as well do more for you. Video and game features are now built into cheaper units and appear more useful than Garmin's collection of silly car icons. Speaker quality is OK for voice, but not for music listening.
Bluetooth speakerphone works very well for me, with instant synchronization of the phonebook, call lists, etc. It is my favorite feature.
The ability to broadcast over the car radio seemed like a good idea, but the frequency range is densely packed by local stations and signal quality suffers.
Map accuracy and POIs: Most of the time the map is accurate. Although I use the most updated version of the map, I had two cases when the POI wasn't there. A few times the streets that are 2-3 years old were not on the map.
Directions: most routes will accurately bring you to where you go. However, the software has an unhealthy and rather annoying attraction towards smaller streets, when a highway would have been a faster route (no, I am not choosing the option to avoid highways). My guess is that it is counting on highway traffic, but is oblivious to the existence of traffic lights and stop signs on smaller streets. I wish there was a number that you could key in to indicate your preference towards highways. Even when I upload into the unit a map created by much more sensible MapQuest, the directions between the points get recalculated the Garmin way.
The weakest parts of the directions are the start and the end. For me, these points are often big parking lots of shopping malls, business parks, etc. The unit is totally hapless in these situations: it does not inform you were the lot entrances and exits are, just tells you to move to or from a particular street, which is not always possible. A few times it tried to start me in the wrong direction of a one-way street.
Navigation in real time: Usually, each turn is announced 3 times: at the beginning of the segment, about 0.5 miles in advance, and immediately before the turn. The first two announcements are useful. However, during highway driving, the unit's announced positioning typically lags by 100ft or so, and the last announcement comes too late. The good thing is that if you miss a turn the new route is recalculated very fast.
Overall, I like my unit, but question the wisdom of paying about $300 for it: some cheaper ones apparently have more useful features, some included features (e.g. FM transmission) are not very useful, navigation has its quirks, and, at this price, one may seriously consider an older PDA with a GPS card.

Garmin Nuvi 760
My first experience with a GPS unit. Very easy to set up and use. I tried using it without the windshield mount (included) which was NOT a good idea. I liked the fact that when a wrong turn was made, or too soon, it immediately recalculated and got you back on track.

Review of the NUVI 760
The Garmin absolutely rocks. Taking the lead in the series is the Nuvi 760 very cool at the price and extremely good at what it is supposed to do. Find you places at the shortest possible time or route. Highly rated and appreciated.Garmin nüvi 760 4.3-Inch Widescreen Bluetooth Portable GPS Automobile Navigator