I've used the 1000 for a few months now, after a few years of using a 500 and a few years earlier use of a 305.
I like the larger, higher resolution, color screen. I'm pleased with having live maps. It adds more than I'd expected. And I like the live segments feature.
Some days I just ride, and the maps can be helpful there, to help get me where I want to be after exploring new places. And sometimes I want to push myself just for fun, and I'll see if I can set a new
PR on a hill, so the live segments is nice.
And some days I want to know that I've gotten a text message, so the Bluetooth connection to the phone is useful.
And yes, it does work.