In the meantime we have a bit more information about the upgraded Sea of Spores:
http://www.inven.co.kr/webzine/news/?ne ... e=lineage2Players found that the exp they gained from the monsters there is not bad, but because said monsters are rather loosely spaced, there is a relatively low hunting efficiency when you look at exp per hour. Even with the daily quest you can do there (
Constant Restoration Work), the Shadow of the Mothertree gives better exp for the time spent. NCWest players please note: the pick-up level for Restoration Work is 106. So either hope that our exp table will be adjusted or buy a real lot of exp runes to make it to 106 before Orfen hits us

Orfen herself is no easy pushover; you need a fair amount of firepower. The Koreans do the raid with 3 teams. One team is dealing with the
Harnes and
Torpedos that Orfen is summoning:

Another team is handling Orphen's Maids
Arimus and
Arima:

And the third team is hitting
Orfen herself:
http://lineage2.power.plaync.com/wiki/% ... 4%EB%93%9CThe drops are considered as "not bad"/괜찮다는. Aliin from Inven.co.kr recommends the raid.