From rarely used skills to old pre-re items, lots of things have been tweaked to make more builds viable. The GMs are very involved and continue to refine the balance, check the wiki to see how much work they put in. All classes feel like they have a niche, and aren't locked into one skill. PvM is now challenging and MVPs require preparation and party play to take down. To top it off, the community is extremely welcoming and super helpful. IMO Leika is a unique RO experience and one of the best.