Currently if you use the GF you are lucky if you get a group. Your even luckier if the said group gets in a Dungeon in 10 minutes!
Why does it still not work.
Why doesn't it not transport you directly to a specific dungeon as soon as the group is formed.
Why is there no rewards for using the dam piece of crap...
Honestly there are so many things in the game that are great, but some of the most important things are fundamentally broken.