I usually read it as: "this is a tool that will provide quick results at the expense of other factors". Usually, the other factors are: 1. Flexibility: The too

I usually read it as: "this is a tool that will provide quick results at the expense of other factors". Usually, the other factors are: 1. Flexibility: The tool has limited scope and has used this limited scope to make decisions for you; or 2. Maintenance: The tool uses code generation. Maintenance cost grows with the amount of code, indifferent to its origin (generated vs manual). Rails, in particular, suffers from problem 2.