Popeye, if you're talking about using RTB, if you don't take the extra steps to make it amazing (ie, Blender work, road joint mesh fixes, custom scenery, custom textures, etc, so much more etc.) it's very easy, for me at least, to know if a track was done in RTB. Not that there arent nice RTB-only tracks, but they are limited to what RTB can do, so it's hard to really push the 'wow-factor'.
But I think RTB is great for getting a quick layout, starting point for good work. The Google Earth path thing the author added recently is bloody brilliant. But again, much more work is needed beyond that.
@_Bazza_ , so good to see you here, my friend. My favorite cars have your name all over them