Userspeaks on his experiences with UNIX, and why he has decided to go with FreeBSD. You can read his full blog post in the link below.
I like to think of FreeBSD as the Debian of BSDs. It has a much bigger tent than others that results in more features available to its users. As I have found on the FreeBSD ARM mailing list its community is super helpful and friendly to new users. The community appears to be more open minded than say OpenBSD which makes a lot of difference.
My RPi2 kit worked out of the box on FreeBSD 11.0-CURRENT, including WiFi. ARM support is improving every day. It is still a Tier-2 supported architecture but I am optimistic for the future.
I can’t emphasize enough on how much I love the separation between base and ports. Unlike any other Linux distro I have ever used, third party applications get updates independent of the base OS. So the same ports are installable on 9.x-RELEASE, 10.x-RELEASE, and 11.0-CURRENT. I am not bound to the same version of Erlang until the next OS major release the way I am on Debian or Fedora. This freedom is truly liberating.
Why FreeBSD? – http://www.aikchar.me/blog/why-freebsd.html