Rolled to 50 Dungeoneering today, all solo. I have a Gorgonite spear and platebody bound, plus 125 Gorgonite arrows.
A few reflections on the skill:
The pathfinding algorithm can be VERY bad, especially in rooms with movable obstacles (barrel room, statue room).
The over-99 skill requirement doors are stupid.
I think the enemy combat levels are wrong. A level 50 warrior shouldn't be able to nearly kill me - especially when I am in full Gorgonite. Maybe they're "elite" units like in WoW?
Soloing isn't bad, but losing everything at logout sucks, especially at higher levels.