Despite how difficult and time-consuming it is, what do you love and enjoy about learning Japanese?

Recently, there was a thread here about quitting Japanese, and I think there are many valid points there. It's okay for people to quit if they don't enjoy learning Japanese, or if it's taking too much of their time.

However, I wanted to start a "counter thread" to talk about what do you actually enjoy about the process of learning Japanese, despite how difficult and time-consuming it normally is? What's your favourite thing about the process, or your approach, or your routine?