I use openSUSE Aeon (former MicroOS Desktop) for about a year. It is based on rolling Tumleweed and the system is stable. It updates on a background automatically.
If you are not looking for a fine tunning your system and expects stable (yet bleeding edge) base, which just works, I can recommend it.
The biggest thing is that the model pushes one to embrace usage of a distrobox/flatpak.