Thhis mod is another fun one. A great amount of Lore and some real interesting RP and exploration make for a fun experience and the little tips really help to set the atmosphere and give the players a more immersive experience. I don't think it should be open to the lower tiers - T3 seems more appropriate at an absolute minimum just from a logistical point of view. I can't see a reason why people with such little skill and experience would be sent to such an important place (especially considering what's there).
It was quite fun to DM and play, and I was pretty happy that the trauma experienced by some players played through to the later modules and has had a lasting effect. Double thumbs up.
[5 of 5 Stars!]