I've pretty much been using ProWrite since it first came out in the mid-1980's with my first Amiga, an A1000. I upgraded over time as I got my A2000 and other Amiga's until I got the last update.
Today, my main Amiga is my Amithlon with OS3.9. ProWrite 3.3.2 still works fine on it, and it's super fast. It's still my favorite Word Processor an any computer.