Just rotarycraft. I find Extra Utilities stuff to be cumbersome to craft (easy to set up once made, but complicated to make), and I haven't made a TD based setup in over a year.
There's a lot of ores in the nether that don't seem to have any use. Adamantium, Amber, Rutile, Nikolite, etc. Nikolite can be processed into dust, Amber can be made into RC amber gems, but the others are just black ore, or unprocessable at all, and none of them have a use NEI recognizes. Also, Nether Tungsten doesn't seem to be usable like normal tungsten, the RC machines don't recognize it.