Yes, I use Neo myself. I had a Heatmiser WiFi thermostat initially and developed a plug-in for that. When the Neo came out Heatmiser were kind enough to let me have a Neohub, Neostat and Neoplug for development purposes, hence this plug-in.
I haven't used other connected thermostats so can't comment, but the Heatmiser with plug-in does everything I need:
1. Monitor and control temperature and mode from Vera dashboard, scenes and PLEG.
2. Switch hall thermostat to frost protection mode if front door is open too long, to avoid heating the street.
3. Vary operation if guests are staying; for example if a baby is present switch on the heating if the bedroom temperature drops too low.
I'm sure other users will have more suggestions; for example, one user delays switching off the heating at night in a room if it's occupied.