Is it worth playing overwatch now?

It definitely has it's Pro's and Con's for each mode. I personally think as long as you're just going to do Arcade and Quickplay, you should be completely fine! Try to stay away from Competitive for at least Season 10, and possibly Season 11. The voice chat in Competitive is extremely toxic at most times, and with the current memes going on at the moment with the "ree" and "Squee" They will be screamed into the mic as often as people can. Also the Racial part of the game you won't see as often, but there are some individuals who will think that they can say Racial things without getting in trouble. I've seen a 27 Prestige player just constantly type in "All-Game chat" The N-Word, and everyone reported him. Needless to say he got banned... People waste accounts like they just don't care anymore.. Be careful of who you play with!