Pro You can enjoy playing!
This game is great! It can get addicting if you like such games! Try it out, you’ll never know if you like it. I do agree that it can get repetitive, however try getting your friends to play with you so that you feel compelled to play, compete with your friends and continue to be intrigued by the game. It has lots of content, there are now more areas to play in within the game, other than completing dungeons and such. You could be controlling a club, enter the geode world, visit islands, grind the shadow towers. This can all lead to a sense of achievement, enjoyment and motivation to continue playing the game.
Con Feeling of unmotivation and boredom.
Since this game has been out for years, and the game has added lots of areas of gaming, you may need to grind a lot to reach even the average current player. You could get bored and such. The reason this is a con, is because if your not playing with your friends, you might not feel compelled to play and grind to get better, and you might feel unmotivated, fail to create and reach a goal, as well as feel unmotivated and bored.