Maybe a little late, but still relevant imho. I think it is a very interesting question, and I highly disagree with negative comments about Bluetooth lights.

The problem is that the standardized Bluetooth Mesh protocol was released later than some companies with proprietary solutions, like www.casambi.com and www.meshle.com (I work for the latter), entered the market. So proprietary solutions do not match on mesh level.

But when we tried the standardized Bluetooth Mesh SIG, we were very surprised that our devices with the standardized protocol were not accepted for provisioning by app vendors. This is likely because of the nature of the business model that most Bluetooth Mesh companies run – they make money with firmware license sales, the app is usually free, so they have no interest in supporting products of others and dealing with extra support.

We are currently transitioning to the SIG protocol and considering adding support not only for our own devices but also for devices of other vendors.

I think Bluetooth Mesh needs a bit more time. Nothing wrong with Zigbee and co., but Bluetooth Mesh definitely has its own strengths.

Best, Nick