I have a Veralite I bought about 6 months ago. So far I have automated my front door, some lights, my thermostat, added motion and water detectors as well as a IP camera.
I whole heartedly recomend the Vera. It's easy to use and if you are so inclined you can litterly write programing code for it. There are guys continously writting new apps and plugins for it to extend it's functionanlity. Many of these apps allow you to do some pretty advanced control with out writng any code.
With some of these apps you can tie in thermostats, audio video, sprinkler systems and alarm systems. Case in point my thermostat is integrated with one via wifi.
Here is the app site. Take a peek and see what people have made to connect additional devices and systems to the Vera.
App store
You add devices and organize them by room.
Different devices give different little icons and action. They all have a common look and feel. Most of these devices are zwave but the camera and thermostat are wifi.
Someone even made an awsome trending app that really lets you see whats going on with any device and your house. It archives data to a usb memory stick.
Here's a couple little "scenes" I've created and they are very simpleto do.
This scene I bought an alarm siren to go off if one of the water detectors trips. I figured it wouldn't do any good for it to send you a text if your sitting at home with the phone charging or your sleeping.
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This scene is set to turn on the living room light when you unlock the door and it's night outside. I have since changed the programing to turn on the light as soon as the code is entered. With this logic it lends itself to allowing you to disarm the system by entering your code in the door knob. I currently am not using my system as an alarm.
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My first automation started off as simply turning on my exterior lights 30 minutes after dusk and off at 10pm. This was the second to turn my hallway light on as I walk through at night. I broke my toe letting my dog out at night so this was a priority.
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I've had the system for probably 6 months and have been adding automation $30-$50 at a time. System is currently only doing zwave and wifi stuff but there is an adapter to do insteon. I've read about people putting in an alarm system and then bringing it into the vera and using all the motion sensors for automation purposes as the alarm motion sensors are cheaper than zwave ones.
If you have any questions ask and I can share my expierence so far. There are some pretty advanced user on the Vera forum that are doing some neat stuff.