I really really like the Nest unit. Even before there was a Nest plugin, I was fine with it not integrating with Vera because Nest's app to control everything is pretty awesome. It's definitely more money than the Trane unit, but it's smarter. And they keep detailed stats so you can see when it's turning on/off, your energy usage compared to others in your area, and total amount of time it's been on. It learns your schedule. The new one can control a humidifier.
There is no other thermostat that comes close to the Nest. I'm planning on buying 2 more to replace the Aube thermostats for my hydronic heat in the basement and garage.