Well, I'm a current Debian user, and I switched from testing to stable because of problems with systemd. OTOH, there's a good reason that it's called testing.
Still, while I don't hate systemd, I also don't trust it. My current intention is to remain on stable while things shake themselves out, and then decide what to do. And the Devuan timeline doesn't show it being available even as a "testing" distribution until next spring. (I gather the current version is sort of a compromise between prototype and unstable[sid], or even experimental.)
By the time I need to decide, I expect I'll know how things are going to shake out. But I expect that I'll be keeping an eye on Devuan, and a few others. And perhaps systemd won't be as bad as I expect. Still, any init system that marks problems with its logging system as "won't fix" is dubious. That the main logging system is binary just makes things much worse. So does expansions like having the "init system" include things like terminal manager, etc. It even makes me tempted to go back to Etch (yah, that's a rediculuous thing to suggest, as the current stable works fine without systemd).