Got this DLC a few months ago to add some dimension to the Marias Pass route. If I understand Amtrack's timetables correctly, this would also be a good add on for the new Stevens Pass route.
I normally don't drive passenger trains. I'm more a fan of the big diesel freight haulers. As I said though, I wanted more depth for a particular route, so I downloaded this train and played around with it for a bit.
I've mainly driven this thing in the daytime, so I can't say how well the headlights work at night. If what I've seen so far is any indication, there shouldn't be any problems there. There are flashing ditchlights, a bell, and a horn, all the usual stuff.
One thing I liked was the Sequencer. It's a switch on the floor that turns on the ditchlights, the bell, and operates the horn in a specific sequence. When it works, it's a nice feature... when it works...
The Phase 5 livery can be numbered any way you want. The Phase 3 is stuck at one number basically. No big deal, but if you want to give it your own unique number, stick with Phase 5. The rolling stock also comes in Phase 3/5 variants, and adds a nice bit of historical iconography to the DLC.
There is one scenario where you start off at Glacier Park station (in Marias Pass route), and have to deal with static goats on the track. Was a bit unexpected.
If you're looking to add a bit more depth to your Marias Pass or Stevens Pass routes, I recommend getting this DLC. If nothing else, you can add this train to your scenarios, giving you more of a logistical challenge.
The only ding I can give to this pack is to the Sequencer. Sometimes it works, sometimes it doesn't. I don't know if this is due to a bug in the included script, or a problem with TS itself. It's really no a big deal, as you can manually sequence the horn yourself. Although a bit annoying, it doesn't detract from the experience for me, so I would still give it a five star rating, if Steam allowed such a thing.