Lionel - what a piece of work... I hope Lionel reads this because as far as I am concerned, Lionel is one shady company. Well, I finally got my diesel back from Lionel that I sent in for warranty work two months ago. It's a Norfolk Southern SD-80 I believe. Well, when I got my Black Diamond Freight before Christmas, I noticed a loud buzzing coming from the engine when run using TMCC and every single person on this forum said it should be quiet. Then I took the engine to an authorized dealer and they ran the engine and agreed that the buzz was abnormal. Then I called Lionel and got an RA because the person I spoke to on the phone also said there should be no buzzing. When I got the box today, the note included said nothing was wrong with the enigne, that the buzzing was normal and that nothing was done to the engine. Lionel also did not address another issue that the rear motor would rub against a cable tray that runs above it making a clacking noise around corners...probably because it's a poor design with a poor company standing behind the product. I was excited about getting into this hobby, but Lionel has ruined that for me...the engine is in the closet with the rest of the set....because of this experience, I have no desire to expand...at least not with Lionel. I will be calling Lionel tomorrow to let them know what I think of the company...if you are a member of other train forums, you will see this post on them as well....Lionel - just another company thinking people are dumb enough to spend $1000's of dollars on less than mediocre quality equipment...what a joke.