Does Last Chaos sound to good to be true? That's because I haven't shared with you any of the less desirable facts about the game. No game is perfect, and you certainly can't have overly high expectations from a game that costs you nothing.
Click-to-Move
Like many free MMOs, Last Chaos uses click-to-move. Essentially, the classic WASD buttons are rendered useless and you use your mouse to move your character by clicking on the ground. It takes some getting used to, but even after you have, it doesn't offer the same ease of mobility and situational awareness that I experience in WASD movement games.
City Lag
The lag in large player hubs in Last Chaos is tramendous. The first time I entered a city (which happens roughly 2 minutes after you first start playing the game) I found my character locked in place for about 20 seconds - and I am on a top of the line system.
Ad Spam
Even though the game rules explicitly state that you cannot use the games chat system to advertise or sell, this rule isn't being very strongly enforced. In the 15 minutes I spent in a player city I saw nothing but ad spam, the same annoying message over and over again. I'm guessing that seasoned players have found some way to communicate around this, perhaps with custom chat channels, but for a new player wanting to ask a question the shear amount of spam makes it impossible.