When comparing Slax vs Chakra, the Slant community recommends Slax for most people. In the question“What are the best Linux distributions for desktops?” Slax is ranked 54th while Chakra is ranked 77th. The most important reason people chose Slax is:
Changes you make in the configuration persist if you run from USB.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Persistent changes
Changes you make in the configuration persist if you run from USB.
Pro Pretty fast to boot up
It was considerably fast to turn on when booting from cd.

Pro Modules
Standard tar archives plus some simple shell scripting produces modules that you can load dynamically into the OS for added apps and functionality.
Pro Modern desktop

Pro Small footprint
About 200mb, but with a full KDE4 environment and loads of useful apps.
Pro Focuses on KDE/Qt Apps
comes with none GTK apps per default
Pro Independent from Arch
its not just another Arch Spin-off
Pro Keeps Gnome apps tidier even than Gnome distros
Cons
Con Overly complicated HDD/SSD installation
While it has a nice layout Slax's lack of an installer tool like Tinycore's just can't be justified. It seems strange that it comes built in with programs that some users may not want, yet it doesn't have an easy way to install it. Due to its heavier use of RAM, built in software, and lack of an installer its hard to choose it over TC.
Con Works slowly on old computers
Con Infrequent releases
Since Slax is maintained by only one person, releases are not that frequent. So it may take a while to get bug fixes or new features once you start using it.
Con Weak base
Sometimes updates will not execute hooks(full update always misses to run mkinitcpio) so you get an unbootable system.
Con Small development team
The team is very small
Con No real installer
Has no installer just a big bloated LiveCD that gets unpacked to your disk.
Con Pacman
Compared to deb or rpm it takes ages to update the system, it's also very dumb in dependency tracking.
Con Unreliable Servers
The CCR or the community forums are often down or unreachable.
Con Overwrites your default EFI config
It overwrites your default EFI config wich can make you PC unbootable if something goes wrong.
Con Uses systemd
Which is very hard to debug and not a *nix standard.
Con Only available for x86-based CPUs
Con Wont let you install the system to USB drives
Chakras weak installer Calamares does not allow you to install it to a USB drive.
Con Weak update process to a recent release
For example, you can install the Goedel Release and update it to the current release which then fails to boot due to some systemd-errors.
