A very nice review. I own the very similar Nuvi 350. It's my second GPS purchase and I can't say enough good things about it. It has excellent reception, good maps, a nice clear screen and an outstanding interface. While I personally have no desire to use a GPS as a speaker phone (I prefer to use a bluetooth headset instead) the 360's speaker phone function is a nice feature for those that have a use for it. I just prefer to read the destination's phone number off the GPS and voice dial from my phone. A nice feature if you want to make a reservation I might add.
Also note that both the 350 and 360 are pocket sized with a real world 3-hour battery life. This is a nice feature when forced to park some distance from your destination.
An optional traffic receiver is available for both models. This gives you traffic alerts for a small monthly fee. But only if you live or work in one of the limited number of communities supported by the service.
One very important thing to note with Garmin's more popular models are the deep discounts that come up now and again. Lately the 350 has been selling for between $350 and $400. The larger Nuvi 660 with both bluetooth and a built in traffic traffic receiver can be had at Costco for around $500.
I do have one quibble. I like to have power cords for portable devices like radar detectors and GPS devices wired in with only a couple of inches of cord dangling and the car's power port left free. The Garmin's 5v USB interface makes this a bit more challenging. I'd love to hear how others have solved this but I don't want to hijack this thread.