Is ElvUI worth setting up for a returning wow player?

worth it if you want the whole ui cleaned up in one go, the installer walks you through it and you're playing in five minutes. downside is it replaces basically everything, so other ui addons can clash with it, and after a big patch you're waiting on it to update. if you only want a couple of tweaks, try the default edit mode first, it's a lot better than it used to be.