I totally agree with you. openSUSE Tumbleweed is IMHO the most stable rolling release distro out there.

Arch and some of its derivatives are also nice but still not as stable or polished as Tumbleweed.

I am still missing the sub-folders feature in the application menu. I hope that someday a developer shows mercy and bring back that feature.

I just use Kritas Image Split feature. But it would be nice to download a widescreen picture and just set it as a background for all monitors. We need to wait until someone will implement that feature.