Started playing in S5, good to play with friends but the community makes it painfully hard to enjoy when playing alone. The insane ammount of playable characters is probably the best thing about this game, takes a long time to learn but feels rewarding to improve.
Aram with friends is by far the funniest gamemode, especially when you're drunk at 3 am.
The big variety of temporary game modes are for the most part very fun to play and have less of a toxicity issue
I would recommend league if you're looking for a game to play with friends (especially aram) but I would definitely not recommend if you are looking for a game to play alone due to the community making it a pain in the ass to learn