I don't know about everyone else who has Train Simulator but I think they should of added more Trains to the Sim, like Amtrak's Pacific Surfliner in California and the few more trains.
I don't think the surfliner set would have been too appropriate on the routes they shipped with the set...never mind eh? On the other hand I thought that some MARC or SEPTA commuter equipment might have been nice for that bit of the NEC, and an AEM7...but maybe that's just me Have you tried the likes of http://www.train-sim.com/ to see if anyone has created a surfliner set yet?