Vantage is great, I have been working with it since 1999.  While I don't install any more I still work with dealers who use it.  I liked that not everyone carried it so I could earn suitable margins.

​The biggest selling point was that they had the best looking keypads of anyone.  They still have great keypads and a rock solid system but it is hard to find ugly keypads today (but not impossible).

​Legrand has given them a backoffice and a lot of money to build on, if it works for you this is a good choice.

​Not to start a war but the house I wrote about a few years ago had Vantage throughout and the client still loves it.  That was the third Vantage system I was involved in with his homes.