If you are using Tumbleweed — which I am —, it is like using a more stable, friendly, and tested version of Arch Linux. Leap is similar to an LTS version of Ubuntu, with slightly newer packages sometimes.
I will probably go with Tumbleweed for my servers as well. While that is not recommended by most people, I run so many tests before updating production servers, that this should be okay — plus, I update servers in batches, with my servers coming before customer servers, so I should be able to catch problems there. Still need testing before this becomes reality, though, might stay with Leap for servers in the end.
One thing I liked a lot is openSUSE MicroOS, which is so much easier to install on bare-metal than the Ubuntu equivalent, Ubuntu Core — perfect for bastion servers, VPNs, or LXD host servers, since the root file system is read-only.
I did replace BTFRS with XFS, though, as for my use case, BTFRS provided no benefit, and performance took a big hit. You will need to run your benchmarks to see if it fits your use case, but the options are EXT4, XFS, or BTFRS (the default).
Overall, I am enjoying the experience, and the community is quite nice as well. Heck, I am even giving KDE a try, and giving i3wm a break.
Canonical, and the Ubuntu Council recognize a few contributors, and grant them the "status" of Ubuntu Member[2] as a sign of recognition of significant, and sustained contribution to Ubuntu or the Ubuntu community.
The membership gives you a few perks, like a certificate signed by Mark Shuttleworth, an @ubuntu.com email address, and a few other stuff[3], but these perks are nothing when compared to the experiences I had along the way. I got to test Ubuntu Touch, participate in a closed beta for Steam for Linux, have a face-to-face chat with Richard Stallman, talk with Mark Shuttleworth, and meet a huge number of people so much smarter than me at a young age, which helped shape who I am as an adult.
I have been calling Ubuntu my favourite operating system since 2008, and I am what I am today because of the journey I went through with it, but as of last week, I have replaced it with openSUSE Tumbleweed on my desktop, and will probably do the same with my servers. I no longer contribute in a serious way, and the decisions Canonical is taking really rub me the wrong way.
Hopefully, I will find a new home in the openSUSE community, and a new journey will start.
[1] https://loco.ubuntu.com/about-loco/
[2] https://wiki.ubuntu.com/Membership
[3] https://wiki.ubuntu.com/Membership#The_Perks