Advantage:
1. The essential elements of the game, such as graphic elements, combat systems, and monster level design, are all perfect.
2. Perfectly equipped with tastes of people who like 2D mmorpg.
3. Numerous quests, various classes and grand stories make the player more immersed in the game.
Weakness:
1. The balance between classes is too one-sided.
2. The only way to get the experience value is to complete the quest, so level-up is long and difficult for beginners.
3. Currently, this game still support various languages, but need to analyze players' countries and support other languages as well.
4. Players whose physical location on the game server is relatively remote, have a severe game lag.
P.S.
I have developed games in many companies for many hours and played many games. Of course, I've been playing this game for about four years. So far, I wrote down what I felt while playing this game. Of course, I know that the above inconveniences are less likely to be improved, but if they are improved, it will be a game that is loved more and more worldwide than it is now. Thank you for developing the game.