I use sid/unstable, and like you I use aptitude, partially out of habit. I used to use stable exclusively. About a year ago I decided to try using sid permanent

I use sid/unstable, and like you I use aptitude, partially out of habit. I used to use stable exclusively. About a year ago I decided to try using sid permanently. I only ever had one issue (couldn't login to a gui), but that was resolved during the next update. It feels almost as stable as Debian stable, and I see no reason to try out something like arch or manjaro.