This simulator has really had a mixed bag of reactions from people. I think the problem is most people have bought this simulator and expected it to be very similar to the original MSTS, and because its not the same, the comparisons of why MSTS is better start. People should remember that this sim is completely different from MSTS, and while it has its problems so did MSTS, but as time has gone on, that simulator has slowly been improved.
Back to RS, when i first ran it i didnt think much of it, not easy to control, no decent instruction booklet, annoying features etc, however, now ive got used to it, i must say this simulator is great. The graphics are absolutely superb, while you do need a pretty good pc to run it, you can run it on lower settings.
The models made for this simulator are pure perfection, such as the 7F & Black 5. The detail to the textures is amazing. The sounds used are even better, with perfect beats to the locos. The slight let down to the steam locos is the steam, while it looks good in motion, it looks odd when the loco is static, it also doesnt react like it would in real life, doesnt get thrown out the chimney, just a constant flow like on MSTS, there is also no steam when the whistle is blown, which again is a shame. Rolling stock is a mixed bag, some of its good, some not so good. But the new downloadable rolling stock is an improvement, as are the new steam locos that can be downloaded. Routes are another great feature of this sim. Fantastic detail, my personal favourite route being the Somerset & Dorset, a very challenging drive.
Whilst there are problems with this sim, i think more people should give it a chance, not just run it once, think "ooh its not like MSTS" then put it on their cd pile. It is a great sim, and once some more add ons are released it will be even better.