I tried iRO for like a month, but I just...can't get into grinding like that. I gave up on it pretty quickly. I really only played RO for WoEing, and you kinda need to be max level/geared to all hell...at least on private servers.
I played it for years in bRO(brazilian ragnarok online official server), have two characters max level, and always find fun when people call 5x-20x servers "low rating" lol