I avoid everything after the first quest.
1) Rewards aren't very good
2) the entrance is too hard (the golems crit too high)
3) its a pain to walk through the area, changing your equipment is a pain
4) if you are a spell caster forget it until you are much higher level than the content, at which point it is a waste of time
The main advantage is getting an extra greater vault which gives you alot of exp *assuming you can clear it*
The place is way too difficult for a "pre TOEF". If you can do that place then toef is a cakewalk. Maybe i have more experience in the toef but yeah.