I've been running openHAB for 3 years with over 100 Z-Wave devices (every light and window in the house, auto-sensing everything), 25 touch screens (one in every room) and wifi/ethernet integration with everything else you can think of (eg UPS, TV, Sonos, Sonnen batteries, Envoy solar interters, air conditioners, sprinkler systems etc). It's never failed and the community is helpful. Irrespective of whatever it's written in, the versatility and 365 x 24 reliability is absolutely rock-solid.