After answering this f. question with the same f. answer for literally 10 years, I'm starting to feel that some kind of re-branding would be a good thing for Slackware. It doesn't matter what Slackware is, it matters what people think it is. And what they think it is isn't really what it is. It's a reasonable distro.
Anyways, I recommend you give it a shot. See the README files, and http://docs.slackware.com/. And have fun.