There were many things that frustrated me with factions: the locked gates, the escort / protect Master Tofu quests and missions. However, I had vented my feelings in other threads...
However, I want to do right by Anet, so I want to tell Anet:
THANK YOU, THANK YOU, THANK YOU!!
What for? For giving us more roleplaying elements in the game...
- Thank you for giving us some personality for the henchmen. It's great to watch Talon Silverwing yelling "Death From Above" as he charges. It's kewl to have Kisai (sp?) being insecure about here talents as a elementalist. It's great to have Lukas yelling in the town that you should "join him" and work beside the greatest hero.

- Thank you for having little street scenes. I walked through the area near Kaineng Center, and I saw an illusion show -- that was great! It really enhance the feeling. I love the entire little girl going to see the mime and wanting to be a mime, or her mother coming by to get her and telling her that she can comeback tomorrow. It's a small touch, but it brings the world to life.
- Finally, thank you for the great humourous touches. My favorite:
<spoiler here! do not read if you haven't finish the game!>
At the end of Divine Path:
The Emperor dancing! He does the warrior dance!

I have a screenshoot of my warrior doing a synchronized dance with the Emperor.
I suggest a new title: "Dancing with the Emperor" -- can only be gotten if you managed to completely sync your dance with the emperor at the end-game.
All in all -- thank you for listening to us roleplayers and adding these touches to the game.