I used an E-86 for damn near ten years. Gigged it to hell and back. A superb instrument. There was nothing to beat it as a live arranger for years. I even went back to it for a while after a brief but unconvincing stint with a Tyros.
Ian is right, from the moment the E-20 launched in '88, all the other manufacturers were in catch-up. Some would argue they still are.