I run OpenBSD on my laptop. I love it, but I would recommend that beginners read some warnings on the label.

First, you will not have bluetooth. Second, it is slow in ways that will matter. As in, you will feel it, but not be annoyed by it (Especially with a web browser). Third, KDE plasma support is a work in progress (read: most people do not get KDE plasma on an OpenBSD installation today, although it won't stay like this forever).

With these disclaimers out of the way, I can heartily encourage it. I love having an operating system that I can trust. Things work, things are well doccumented and things are very very clean.