Staudey Yeah it's pleasure to use this setup...
Keep in mind that I've added some tweaks to i3 defaults, like gtk theme, firefox via userchrome.css, disabled gtk csd buttons and custom scripts to manage global i3 behaviour that you can't see on the screenshots...
I'm a big fan of budgie, but I admit I really enjoy i3 flexibility and speed. This stuff is really fast! And heavy terminal and keyboard usage is a huge time saving for my daily tasks...
Feel free to ask for any advice...