DaisyUI is beautifully written. This can be the kit with a boatload of work done for you. Think like Bootstrap but better with Tailwind. You can use this to teach how to write well thought-out CSS codes, separation, and extensibility.
TailwindUI is more like Bourbon[1] (was my go-to Sass tool) but on the structural interfaces done for you. I'm standardizing out Web, WebApps, and marketing materials to start with TailwindUI. Someone with good chop of CSS/Tailwind won't likely need to use TailwinUI but it can be a fast tool for teams. It is highly extensible but also has the double-edge sword criteria that a rookie can just keep copy-pasting, repeating codes and still work (not a good thing).
Will we use DaisyUI for the team? Unlikely!
Will I use it for some quick but still larger project, marketing page? I might very likely.
Tailwind UI is great! ( please note that I a primarily a backend dev with limited knowledge of CSS )
Looking forward to explore DaisyUI soon !