This is an odd one indeed and I only bought it because it's all metal and real riders. As a mainline it would most likely not make it into my basket.
I'm still waiting for it to grow on me. But I like how heavy it is, I really appreciate weight in 1/64, don't know why...Raisin plum purple with lime, it's one of those things that grow on you.
The Metrorail is one of those long nosed cars that really needs a metal base, otherwise it's just too much plastic.