Do you want to play a MOBA? Sure! It’s pretty easy to learn a lot of the mechanics and items you need—a bit more so than DotA 2, in my opinion. DotA 2 is a lot harder (and some say better.) League is much better in my opinion
It’s the most played PC game in the world for a reason. Millions and millions of people play this game and I’m sure most of them see it as “worth it”. I still play from since season 1 almost seven years ago. It can be really fun If you’re going to play, you may find that playing with friends is a lot better than going solo.