Just for reference, I am a "weekend warrior" and I am on track to do about 100-125 hours per year.
So if it was maintained properly, and used properly, I don't think thats too many hours.
Like PaulL said, look it over well.
My Dad taught me many, many years ago to look at how the guy keeps his other stuff as a reference on how he kept this.
IMHO, thats probably the best indicator of if it was "used" or "abused".