When comparing Hammerspoon vs Gridsutra, the Slant community recommends Hammerspoon for most people. In the question“What is the best window manager for Mac?” Hammerspoon is ranked 13th while Gridsutra is ranked 38th. The most important reason people chose Hammerspoon is:
https://github.com/Hammerspoon/hammerspoon/issues They do fix issues that come from the community.
Ranked in these QuestionsQuestion Ranking
Pros
Pro 1512 issues are closed in the download page in GitHub
https://github.com/Hammerspoon/hammerspoon/issues
They do fix issues that come from the community.
Pro Deeply customizable
Hammerspoon's Lua scripting and broad API allows you to perform any action you can imagine on your mac. It hooks into many OS APIs directly and has some high-level APIs to manipulate things like Spotify or iTunes. See the full list here.

Pro Automate actions based on the operating system
Hammerspoon lets you hook into OS level events and trigger any action you can imagine. From setting up a simple keyboard shortcut to launching a complex workflow using multiple apps and scripts.
Pro Good Adobe support
Gridsutra has Adobe support with the ability of stacking Adobe windows.
Pro Simple UI
The interface if Gridsutra is well thought through and easy to use.
Pro Window arrangement with a single click
Windows can be arranged or snapped in Gridsutra with a single click.
Pro Intuitive UI and delightful user experience
Pro A great tool for a reasonable price
Pro Highly flexible
Gridsutra works with most MacOS applications.
Pro Great drag and drop functionality
The drag and drop option in the layout gives freedom to the user for arrangement of any windows to any positions desired.
Pro Useful ignore/unignore feature
The ignore / unignore feature in Gridsutra allows the user to block unwanted applications to be listed in the layout option.
Pro Custom layout support
Cons
Con Has 324 issues on their download page in GitHub
https://github.com/Hammerspoon/hammerspoon/issues
I can not list all the issues.
Con Some knowledge of programming required
Hammerspoon is scripted in the Lua programming language, and some familiarity with programming in general will be needed to use it. Some plugins exist that can be used by adding some files to a specific folder, but this will not give the flexibility that is so key to Hammerspoon
