In practice, it is largely like other similar distributions. I've been running Slackware for many years, but the wait for 15 was too long for me so I installed

In practice, it is largely like other similar distributions. I've been running Slackware for many years, but the wait for 15 was too long for me so I installed Arch Linux out of curiousity, and found there's a lot of similarities between the "core" repository and user repositories (AUR and Slackbuilds) and how complete they are. For me, the hardest part of this switch was systemd actually. Otherwise it's mostly using the same software (DE, browser, etc).