Same for me, I've also enabled all the experimental webrender flags on both private and work machines and have had basically no issues at all for the last weeks.
It's actually almost slightly uncanny how well it's working.
This might be a placebo effect, because last I heard enabling WebRender would leave the usual renderer enabled as well in order to paper over yet-unimplemented features, which should often result in double the work and, one would assume, worse performance. But if it doesn't feel slower, then, well, that might be some kind of triumph. :P
I'm still on chrome, because of pepper flash.. :/
and because debugging angular sucks on firefox.
Edit: still checking out if it might be possible. i've just seen that the newer firefox has also some kind of flash player integrated. just the debugging is now strange.
It's actually almost slightly uncanny how well it's working.