Advantages to the Trusts:

- They don't complain if you have to pause and go WC or take care of IRL stuff
- They don't complain if you go into /gpose randomly
- They know the mechanics and can teach you on the first time through
- Make the game feel more like a classic offline Final Fantasy game

Cons:

- Slower DPS
- Lack of socialization

For me, the pros definitely outweigh the cons for now.