GPS with live traffic and other features opinons pls

I am interested in a new gps with some of the extras and one in particular is live traffic, where traffic info is feed to the gps and that can be used to reroute. Looking over it it looks like some may just use long term construction, others live traffic. I would like to know your experience with this feature and on which make/model, in particular the greater NYC area.

Other features I am considering and would like input on is voice recognition, and live internet services such as google on it.

Any other feature you find really useful and want to mention.

I use the GPS nav on my sprint phone, it gives very up-to-date live traffic and I am learning to listen when it advices me to take an alternate route. It “could” have saved me a bad wait on my trip to the airport last week.