My desktop has been Debian testing since Jessie. I was inconvenienced a total of 2 times where something broke and made an app unuseable. My KDE menu was fixed within a day and my torrenting app took longer to fix, but I was able to apply a one line fix in the meantime with help from our awesome community.
I know it’s named “testing”, but I’d bet it would be very stable for most people’s use cases and trade off is absolutely worth it if people would give it a try.