If you are not a patient person
At the beginning of your leveling up, it may have some trouble. Each class has low hp, low defense, bad weapon and bad armor at start. Players can hardly complete the quests. They are often killed by mobs. As a Warrior, you will have better weapons and armors when you reach level 22, while other classes have AOE. From that time onwards, Requiem Lant is really slow. You will feel bored if you are not a patient person.