Very interesting & different kind of RO experience . Cards collecting have never been fun until now. The cards add a permanent effects to your whole account and characters become very strong. Community is very friendly & GMs are very active & help. Donation isn't anything that gives and advantage over none donate players. You can farm donate coins. Not really a economy yet. Overall this is a experience worth giving a shot, come join and help the quest of players to collect all the cards in RO!