I use OpenBSD. You must check the hardware support. If it works, it works far better than Linux from my experience. Somethings to take note:

  1. Power management may not be as good as with Linux
  2. No HDMI sound support
  3. No bluetooth
  4. You need to be comfortable with config files and man pages.
  5. Probably fewer applications in the ports tree (I have all I need).

If you are fine with the above, OpenBSD is the finest OS I've used so far. I've never run into random issues like wifi connectivity, audio issues like with Linux.