I just recently got into playing with DartCraft, and I think it's easy to say that it's overpowered. But that can still be objective. In my current game, I'm less interested in doing the same'ol stuff to get the same'ol items and to create power in the same'ol ways. I've done that dozens of times now. So having a mod that makes the early game a bit more streamlined is fine for me in this case, so that I can get into other mods I've been eager to get into (Thaumcraft 4, Galacticraft, etc).
That being said, I think ore doubling is a bit too common now. But it's like with a lot of other features. When somebody does something in enough ways enough times, eventually someone comes along and just makes it simpler. It's like with the Aqueous Accumulator in Thermal Expansion. It does the exact same thing that you can do with vanilla mechanics and a Buildcraft pump, it just does it differently. Ore doubling is essentially the same. It's been done the same using a machine to grind and a machine to smelt for so long that eventually someone just decides to go for the easy mode. When you consider that power can be essentially free if you create the proper power system, it's not that much of a cheat.
I guess it just depends on how you want your game or server to go. Personally, though, I do enjoy making machines and production lines. It's why I got into modded Minecraft to begin with!
That being said, I think ore doubling is a bit too common now. But it's like with a lot of other features. When somebody does something in enough ways enough times, eventually someone comes along and just makes it simpler. It's like with the Aqueous Accumulator in Thermal Expansion. It does the exact same thing that you can do with vanilla mechanics and a Buildcraft pump, it just does it differently. Ore doubling is essentially the same. It's been done the same using a machine to grind and a machine to smelt for so long that eventually someone just decides to go for the easy mode. When you consider that power can be essentially free if you create the proper power system, it's not that much of a cheat.
I guess it just depends on how you want your game or server to go. Personally, though, I do enjoy making machines and production lines. It's why I got into modded Minecraft to begin with!