The thing with the NAM is that it seems to just let me ignore building proper road networks. Looking at the values, even the low setting raises the capacity for streets from 100 to 1500. However, the default capacities seem way too low, even though I've never built any major cities. I guess I'll try the Low setting, since so far I've only tried Medium and Classic.
While I think the Industry Doubler is a bit of a cheat, the default number of jobs provided by industry just seems so low. The doubler also doubles the tax value, power demand, water demand, and pollution for industry, so it seems balanced, at least a lot more so than the Quadrupler. Is there anybody using it that can give me feedback on how major it's effects are, and if you think it improves the game?