I got my Strasburg #90 and with eager anticipation I opened the box. Looks good, however I found one of the windows and the tiny brass hinge in the wrapping of the locomotive, not a great start.
Right away I noticed while running that the tender marker lights were flickering a lot. They weren't going completely off, but just changing intensity as I rolled down the track. They didn't do that when on the test track with the tender not moving on the tracks. I took the trucks apart and cleaned a little paint off the mating services. Then I used a wire wheel on the Dremel to clean off the odd looking coating on the tender wheels. That seemed to cure that issue.
Sadly, things seem to go downhill from there.
The whistle steam is anemic at best and simply not there most of the time. Occasionally, I get a puff of smoke, but usually, you can't see anything. I feel plenty of air coming out, so I know the path to the whistle is fine, so it's something internal to the smoke unit. The main smoke works just fine, plenty of smoke there. I even added more smoke fluid, probably 35-40 drops total and let it sit for an hour or so to soak between the chambers. No joy, lots of smoke from the stack, basically nothing from the whistle.
As it was running around, I noticed the locomotive marker lights flickering, then they went off. Reprogramming didn't fix anything. I did see them flicker again a time or two before they decided to give up totally.
Looks like a loser to me, I'm NOT impressed!