There is a complete experience failiure with the class 101 WMC unit where I was suppose to bring it into service from the depot and basically i've had very un-desirable experience because the leading unit had people inside it from 1960's and the other unit was empty. Then there was smoke comming out of the exhausts and engines were heard running on both units but the leading unit is clearly dead. Not fun.
Passengers on ECS workings in TSW are a known issue. You get used to it. The irony then is, they all alight at the first station, no one else gets on and the main run is then bereft of anyone on board.
Also alot of if not all scenarios or timetable runs with the 101 don't take into account that you have to manually set up the loco, lights, etc so it adds like an extra 5 minutes on top. It's just an older unit.