Server security from bots (L2Walker, L2Net, L2Tower, etc) provides LameGuard.
Security from all kinds of ddos attacks provides HyperFilter.COM

Server rates:

Xp - 120x
Sp - 120x
Aden - 70x
Drop - 35x
Spoil - 35x
Quest Reward - 3x
Quest Drop - 10x
Raidboss Drop - 5x
Zero our Reward - 2x

Olympiad:

Olympiad Starts 18:00 (GMT+2)
Olympiad Ends: 24:00 (GMT+2)
Hero Changes: Every Sunday 24:00 (+3 GMT)
Olympiad points have to be exchanged on Sunday
Hero Status can be retrieved from Monument of Heroes

Enchantment Rates:

Max Enchant: +16
Safe Enchant: +4
Simple Scroll: 65%
Blessed Scroll: 72%
Crystal Scroll: 72%

Grand Boss Respawn Time:

Valakas: 192 +4
Antharas: 168 +1
Baium: 120 +1
Frintezza: 72 +1
Zaken: 48 +1
Queen Ant: 36 +1
Core: 36 +1
Orfen: 24 +1
Barakiel: 6 +1

Additional Information:

24 Buff Slots + 4 debuff
Buff Time 2 hours
Free Class Change
Free SubClass Change
Fully working RaidBosses/GrandBosses
Noblesse with Caradine letter lvl 65 in GM Shop.
Global Olympiad
Auto Learn Skills
Scheme buffer
Ideally balanced classes (accomplished in Olympiad environment)