I have a Vera Edge and have done for only a month or so. The entry point of the device is low in cost terms but I have to say it seems quite haphazard in operation, flaky sometimes. The browser UI is pretty shoddy. Vera Support is OK at responding but you never know when fixes you really care about will surface. They go into a black hole.
Sensors and switches and things are pretty expensive. I have 2 plug switches, 3 multisensors of one type and 1 of another type that I, or no-one else, can get working properly with Vera... despite both being supposedly certified as Z-Wave... so if you think it's a simple world of plug-and-play, unlikely. This sensor that refuses to work cost me £52 alone, I'm just waiting until someone fixes it.
I have 6 Somfy motor roller blinds hooked-up, most mornings all 3 blinds in my bedroom bay window rise when sunrise comes along... sometimes only 2 of the 3 blinds rise. It's the same Scene (code, logic) being executed every morning, it's the same house with things in the same place... it's just a bit flaky. It can't interrogate those blinds to find out their position, so it just sends an UP command and hopes for the best... if they're up all is good, if they're not, it doesn't know.
I also have it integrating with Nest and Sonos.
Still, it's all good fun...