The King's knight opening is popular and occurs frequently enough that every chess player should know it. From the data, you can expect that White should have a high 53.7% chance of winning, while Black should have a low 46.3% chance of winning. Because of the fact that this opening is popular and that White has such a high expected chance of winning, it is definitely well worth it to study this variation since you will definitely run into it. When you run into it, (and you are White), you should have a significant edge.