I used this in the mid- to late-90's on my 80386 (which was very much out of date at the time, but was all I had). I was very new to computing at the time, and the only other languages that I had under my belt were QuickBASIC and 80386 assembler, so I can't comment on if it were a "good" language or not. After less than a year, I ended up abandoning it, preferring to use QuickBASIC for high level, and machine language for low, not feeling like I needed the intermediate C--.

At least that one actually defines a decrement operator.