It was really nice. With the current linear design I organize desktops by theme (e.g. one for dev, one for research, etc) and with the 10.5/10.6 design I'd use vertical desktops for subcategories — so following the same example, on a single screen setup I might have desktops arranged something like:

   │   Rails Docs/Search   │   Backend Dev  │    Music   │
   ├───────────────────────┼────────────────┼────────────┤
   │   UIKit Docs/Search   │     iOS Dev    │    Chat    │
   ├───────────────────────┼────────────────┼────────────┤
   │  MDN/Web Dev Search   │     Web Dev    │ Email/News │

With this, I quickly develop muscle/spatial memory for where each category "lives" and can navigate there in a flash. It also substantially reduces the need for individual programs like browsers to bear organizational load, so for example suddenly "just" single-tier vertical tabs become sufficient, making browser workspaces and tree style tabs much less necessary.