Overwatch is worth it (sorry been on a trip)
I myself sunk more than 700 hours on TF2, I loved the game modes and the community, Overwatch looks very similar in that regard. But from what I played the levels are really amazingly crafted, to the point that the assimetry of the map and of the characters is fair.
I'd be glad to own the game, but I only played for 2 weeks, in my friends Battlenet while he was traveling.
And dude, it's a Blizzard game.