I've got an 8700P with about 3100 miles on it. The board went out 2 years after we bought it and Landice replaced it although i had to pay for labor and trip charge. For the past number of months the motor has gotten loud and now I'm getting a very loud bearing type metallic noise. A new motor and bracket run over $700. We've been happy with our Landice product, but am surprised that I've got significant motor problems at 3000 miles. The motor is a 3hp motor so it's not a lightweight and we don't get on the treadmill until the motor is up to a decent speed so that we don't stress the motor.