One of the features I was missing in a Mac OS utility was the ability to trigger commands without mousing, but still interacting via the GUI. The utility I used to rely on for this was MaxMenus by Proteron software, which is no longer (I see that I purchased it in October of 2002 for about thirty bucks).
I would create menus/palettes with commands to common actions, and I’d trigger the menu to pop up with a keystroke or mouse click (I can’t remember… It might have been hot corners).
When I first tried Pieoneer, it was in the spirit of replacing Max Menus. I used it solely as an app switcher, which is not this app’s marquee feature. If you only have a few apps running at any given time, you might be able to live with Pieoneer as your app switcher. But it’s not better than the default macOS app switcher. Or Launchbar, for that matter. It is cool if you prefer moused-based navigation, though.
There is an app-specific mode, however, called Controller, wherein you can assign commands to a radial menu that is specific to the active app (the one you’re using). The defaults include Safari and Finder, and they’re both examples of how you can use Pieoneer to great effect. In Safari, you can open up the sidebar, tab overview, and more. It’s great for exposing features in the application for which you often forget the keyboard shortcut.
I do think that my long-standing setup, which generally features Launchbar to do almost everything, is muscle memory and I’m not going to stop using it. Launchbar launches apps, starts web searches, organizes files, and navigates just about everywhere. It’s a piece of infrastructure that I absolutely rely on. It’s simple to start using but has true depth.
Maybe Pieoneer is a mouse-driven version of Launchbar?
Logitech MX Master
One of the features of Logitech’s excellent MX Master mice is the LogiOptions software, which I was loathe to install but find useful in setting up custom commands for the mouse. One of my favorite buttons on the mouse is the thumb button, which was programmed by default to show Mission Control on the Mac. I like Mission Control to some degree, but I often find the tiles to be too small to be useful when I’m running a bunch of apps (which I usually am).
I set up Pieoneer to show the Launcher feature when I shift-click the thumb button, and to show the application-specific controller menu when I click the thumb button without a modifier key.