I found OpenBSD in my brief stint to be too useless as a desktop. The installer is quite hostile and stupid (and I don't mean advanced or unix-like before someone tries to defend it; it's actually hostile and retarded. It wiped my gpt table without asking me). The performance was terrible out of the box. It couldn't saturate a standard gigabit Ethernet link on my w530 in iperf, scp etc. pkg management was really slow. pkg_add takes ages like a windows 95 machine. And it doesn't have a standard package update mechanism without relying on a third party like mtier. All in all, the impression I got from using OpenBSD was that it's best used either as an ingredient like OpenSSH in other better operating systems, or maybe for some other specific use cases where these flaws can be overlooked.