Great distro. I use it for light surfing for now but will probably attempt to learn about penetration testing of my network some day.
. Only distro that recognizes wireless on my 386 without any extra tinkering. I always have wireless problems with debian or arch based distros and others for my 386 and 686. Setting up wireless shouldn't be this painful for any os but that has been my experience with Linux until Kali. Even with Stretch I still had to tinker a bit to get wireless to work.
. Can add a non-root user(s).
. Fast booting even on a sd card at full install.
. No bloats; let me add what I need via repositories.
. I haven't figured out the cause for and how to fix the lvmetad and vg errors during boot up. Maybe I'll wait until the next update to see if I still have this problem.
Not a general purpose Linux distro, but excellent for its main purpose - penetration testing - as many of common and useful tools are already built-in. Used it for over a year at work without any real problems.
Old OpenSSH and OpenSSL versions. Other libs are almost ancient if you are used to Arch/Gentoo/Slackware. All the classical Debian based problems.
The collection of available tools is pretty nice, but not always up to date.
I favor the Light version, because it uses XFCE. As such, it comes with about 5 pentesting apps, and virtually nothing else. I LOVE the grub background image, and the user default as root (like Puppy). It DID force me to learn to use apt-get install from the command line, which was a good thing.