My controller odometer shows 2600+ miles. I think the controllers assume 26 inch wheels, and mine is in a 29 inch wheel, so the actual miles are probably different. In terms of motor revolutions, we are comparing apples with apples.
I only have a single LiPo battery. It seems fine. Any changes are more likely due to how I am using it more than changes in the battery as far as I can tell. My commute to work is 9 miles each way.