I had a PRR M1a that I purchased just over a year ago. I didn't have a layout at the time, so it sat in the box. Early this year, I finally get my layout up and running, and the M1a runs really herky-jerky at low speeds. I thought it might go away after a break-in period, but the problem persisted.
I contacted BLI Service, and the rep told me that even though I was a couple months outside the warranty period, they would repair or replace it for free. I received it back today, and the note said they had to replace the chassis of the engine.
Now it runs smooth as silk. I know we all complain about various manufacturers when we receive less than stellar service, and I just wanted to pass along some Kudos to BLI for good customer service.