I was an off and on again WoW player. I wanted to like the game but I wasn't a big fan of grinding. Playing with friends helped that. But then there was the characters. I managed to get a lvl 100 monk and rouge but I always found myself not fully enjoying them. I tried others as well but nothing really stuck with me. Stop playing Wow for about a year since I wasn't enjoying any class and Drenor felt extra grindy to me.
Legion came out and I decided to give it a try again. Created a Demon Hunter. Ever since I become a Demon Hunter this has been the most fun I had in WoW I don't care about the grind because I enjoy the Demon Hunter. It's very fun to play. It's not often I play WoW by myself but now I'm catching myself getting on ever chance I get. I love this. Now I want to do everything. Gather mounts and battle pets. Max my profession. I created a guild. I'm achievement hunting. I'm trying to max my Demon Hunter potential for raids and so on. But I promise I don't have an unhealthy obsession with WoW.
TL;DR: WoW felt tedious to me. Characters didn't fully interest me. Legion and Demon Hunter made me fall in love with the game.