XB-70 says...

These kits got me back into Model Railroading. They are like potato chips: once you get started, you can't build just one! The quality is superb. The only caveats are that a) they are very light. You'll need to add weight to get them to 2.5 oz (NMRA standard) and b) my personal preference is for metal wheelsets. These are 1.00" - slightly shorter than 'standard' wheelsets. I wish there was an option to buy them in metal because they are hard to find elsewhere. Lastly, I was blown away by the detail when I airbrushed these cars. You will be too! Get two boxes!!