I have never had any real issues with the GE/Jasco stuff. Nor have I had any real significant failures of any particular brand of device. There are devices that have "quirks" here and there, but not something that can't be worked with.
If the GE were as bad as your experience, every forum about home automation would be filled with complaints. And they aren't. So I think it probably is something in your setup or environment.
So I wonder if you are having power quality issues? Maybe some bad device is killing your mesh? Like someone mentioned, an S2 issue?
I don't have answers, but I think you need to do more diagnosis of the issue.