oooh.. test rode a 1600 and I liked it much better than the 1500.. course it's more $ as well. Just seemed smoother.
It's cuz of the 1600 that I bounced my pricepoint up and started looking at that category of bikes. I was just looking for an entry level bike of some sort (hybrid, fitness, commuter, tourer).
Oh and I did like the color better on the 1600. The 1500 seemed more baby blue whereas the 1600 is more like a crystal blue sky color. .. a more "pastelly" blue kinda.