NS Crescent Cab?

[cargostar]

I know there are several Crescent cabs available on Shapeways in HO. Has anyone used any of them? Pros? Cons?

Thanks!

[ThoroughBreed]

I just received one as a gift (painted as 6920). And it has the print lines on it, even after sanding.
There's a guy on Ebay, Bigdawgoriginals.com that does them also, but as a casting. They look a lot more promising than the 3d printed ones.