When comparing KWM vs Swish, the Slant community recommends Swish for most people. In the question“What is the best window manager for Mac?” Swish is ranked 8th while KWM is ranked 18th. The most important reason people chose Swish is:
Gestures are faster than dragging or keyboard shortcuts.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Works in the same way that Xmonad & i3 does for Linux
For those who would like the same tiling window management of Xmonad and i3.
Pro Runs in the background
The application runs in the background. There is no indication that it is running except the automatic tiling of the windows. There is no menu bar icon or icon in the dock.
Pro Windows respond very fast
Most users claim the tiling and splitting of the windows in KWM respond more quickly and more reliably than the only other known window manager of its type: Amethyst.
Pro Software is free and open source
Pro Highly configurable
Using the config file (kwmrc) you can configure a variety of options including Window spacing and padding, borders, hot-key commands, etc... There are those who would say that the possibilities are limitless.
Pro Best window manager for trackpad power users
Gestures are faster than dragging or keyboard shortcuts.
Pro Multi-monitor and spaces support
Switch intuitively between screens and spaces based on their physical location.
Pro Sleek and intuitive
Pro Easy to use
Intuitive gestures, doesn't get in the way like BetterTouchTool.
Pro Custom grid offsets
The default setting uses a clean single-pixel divider without any overlaps.
Pro Matches the Mac language
Pro Fast
Just squeezing on top of an icon to close the app is a breeze compared to right clicking and selecting "quit," using Command + Q, or APP NAME -> Quit.
Cons
Con No longer being developed
Sadly the developer has moved on to work on a different project (chunkwm), so there will be no more updates for KWM. However the code works well; no matter what version of macOS you are using.
Con Takes long to set up
You need to use the terminal and edit the configuration file in order to adjust it to the way you want. This might be a little confusing for basic users. But once you have it set, you can just copy the config file and use it on a multiple amount of machines.
Con You need HomeBrew to install it
Homebrew is required to install it. Takes more to get it work in the terminal to get it installed and working on your system.