I love this mod even though it tends to lag many clients.
One of the best features for me is that this mod allows you to double ore output by grinding the ores and then cooking the ground ore into an ingot. This is extremely beneficial to new players who haven't found many resources.
There are several forks for this mod. I personally like the ones that support HV machines and chests that have more features.
I think this mod is a must have on a server that can handle it.
I love this mod because it gives the player the ability to travel around the map very quickly. Players can link multiple travelnets together on one network. This make saving locations like home, mines, certain biomes, shops, or other POI easier.