After rescuing two laptops which were unbootable after the installation of systemd-sysfs I had problems with stuff as bluetooth and some of the services.
So I decided to do a clean install of stable and got going - until I left my laptop for some hours to finish a job - and it would not react to anything I did on the keyboard. I had to switch it off and restart it. I though it might only be a little hiccup so I went on working on stable (although I could not get my wifi working). Then at one stage I left it to build a package and when I returned, it finished the job and was totally unresponsive.
So I deciided at least I could work with testing and I did a dist-upgrade to testing only to find that I could not boot.
So for now, after using Debian for many years on my laptop, I am going to try something else.
I would like to return to Debian when the systemd problems are sorted out.