Mainly from Hubitat's and SmartThing's communities. There are numerous posts about issues with bulb routing in both communities. The Crees was well documented by @april.brandt here Dealing with Zigbee Issues - Gotta love those Crees. I had seen other posts of issues after a given number of bulbs were added. I think I was at 7 before i started replacing them.
The best advice I could give is to consider fully what you want and the end state. In my case I'm the only one I have to worry about annoying. If something doesn't work there is no one else that is going to complain.
