About the size of a pack of cards the Garmin Nuvi 350 is a GPS Navigation system, traveling assistant and a entertainment center all in one. It is small enough to fit in a pocket and light (5.1 ounces) to carry around easily. Combined with detailed maps, the Nuvi provides automatic routing, turn-by-turn voice directions, and touch screen control.
The Nuvi also offers a travel kit of useful travel tools to help keep any journey fun: MP3 player, audible book player from Audible.com, JPEG picture viewer, world travel clock with time zones, currency converter, measurement converter, and calculator.

The Nuvi comes preloaded with City Navigator NT for street-level detail and addresses.   You can use it to search points of interest -places like hotels, restaurants, shopping, ATMs and tourist attractions throughout the U.S., Canada and Puerto Rico. 

In select cities (currently about 49 areas are available) you can get traffic alerts with a compatible traffic receiver. If you hit a traffic jam - simply push a button and recalculate a new route. Of course this service costs extra.

This device is WAAS (Wide Area Augmentation System) enabled. What is WAAS? Basically, it's a system of satellites and ground stations that provide GPS signal corrections, giving you even better position accuracy. How much better? Try an average of up to five times better. A WAAS-capable receiver can give you a position accuracy of better than three meters 95 percent of the time. The information is compatible with the basic GPS signal structure, which means any WAAS-enabled GPS receiver can read the signal. So you don't have to purchase additional receiving equipment or pay service fees to utilize WAAS. Unfortunately, as of now, WAAS is only available in North America.

Except for a power switch located on the top there are no other function buttons. All commands are entered thru a user-friendly touch screen. An SD card slot provides additional storage.

Pros:

• 3-in-1- Navigation, travel assistant, MP3 player
• WAAS capable
• Small, light

Cons:

• Lack of a volume control.
• Cost. It is a pricey model.
• No Bluetooth...Unlike some of the newer models this one is not Bluetooth compatible...but then again this model costs a lot less than the Bluetooth compatible models(approx. $300 less in MSRP)
• Sometimes the house numbers are not accurate on their maps.  The Garmin asked me make a left turn while actually the house that I wanted to go to was on the right. So, I contacted Garmin and got this explanation in an email from Garmin Cartographers:
  "The addresses are attributed to the streets by ranges.  They are not geocoded by specific driveways.  It is meant to get you close, but it may not get you right to the exact driveway. This potential range is also sometimes reversed or located on the wrong side of the street, especially in the areas that are not driven by NavTeq. " Translation (in plain simple English): A Garmin Nuvi can be wrong sometimes...so it may be a good idea to get directions from another source...like if your going to a friend's place... Ask your friend for directions! (This is true for any GPS not only the nuvi 350).

Conclusion: 

I have used this for a few months...it sure has taken me where I wanted to go...without getting lost!

If you are looking for a GPS receiver (and bluetooth compatiblity is not important to you) this should be among the top on your list.

(Note: This guide is based on my personal research  - I am not sellng/auctioning this item. )