Well, here is my 2 cents..I only recently got into model railroading (although I have been a scale modeller for years) I have to say that the Athearn RTR units when compared to the older Blue Box kits is a step in the right direction. The accuracy of the multiple paint schemes (I personally model the Chessie System which nobody seems to get the paint right on..) is spot on. I currently own 1 Athearn Genesis SD45-2 w/ sound, 2 GP40-2's, 2 SD40's, and an SD38. They are all ready to run and that they do great! Although they are alittle noiser than the Atlas, P2K's and Kato's I have owned or ran, they still are some of my hardest pullers! The shell details on ALL of the above locos seems more railroad specifically accurate than the 2 Atlas locos I own and aside from no windshield wipers, no MU hoses, no coupler cut bars, and sometimes no interior, they are up there with my P2K's. I don't personally like the metal fuel tanks on the 4 axle locos, but after weathering they all look the same anyways. I believe they started putting LED's in the headlights of alot of their models although I could be mistaken. All of mine shine pretty bright. As far as kit-bashing, they are EXCELLENT to do that with. I have taken off the cabs from my two geeps and replaced them with Cannon cabs. Now that they have all the other details that the rest of my locos have (MU hoses and such) they actually look better than my other locos as well. As someone also stated above, you really can't beat the price either. You are taking a shot in the dark buying that loco you listed at the beginning of this thread...It is a kit that we all know as a Blue Box kit, and although I am not sure about the drivetrain quality and such, alot of the ones I have come acoss have HORRIBLE paint schemes (bad masking, orange peel effect, etc.) and the metal handrails that never seem to be straight only adds fuel to the fire. Not all of them are like that though...If you plan on making this kit a showpiece, perhaps you should start looking into some, all, or more of the details I listed above. With alittle bit of TLC and some actually cheap, but sometimes quite hard to find railroad specific detail parts, you could turn that loco that some may call "junk" and turn it into your favorite jewel! At any rate, go to the hobby shop (if there is one around where you are) and do some inspecting...Compare some of the Athearns to some of the higher end stuff. Always do as much research as possible before buying! Hope that helps alittle more...
-Rich