Need help making a decision on gps purchase

I'm looking to purchase a gps device for my car. I have specific
requirements in that i want automatic routing capabilities of multiple
destinations (up to 15 or so), voice prompts, and traffic
notification wouldnt be bad either (i can always get an add on for
that). My research brought me to the Garmin Street Pilot 2820. Does
anyone have experience with this device? Anything good/bad to say
about it? Are there other similar products that anyone would suggest
I get that is better than the 2820? I went with garmin since i hear
they are leaders in the industry, but i know there are several other
reputable brands with good products as well.

Thoughts??

.

Quantcast