Haha, that is a savage Mei!
Mei really doesn't get enough love in Overwatch. Her pick rate is among the lowest in the game, especially in the top end. She's been getting a bit more popular with the Doomfist meta, but I think that sells her short of how awesome she can really play in general. Whenever I use an Overwatch Team Comp Builder I have trouble finding metas that account for Mei -- or finding teams that want to roll with a Mei main in the first place :C
My friends always ask "why don't you play Mei more often?" after every match I play her, so even I need to give her more love and I love her, haha. Honestly we usually replace a tank with Mei, if the player is a good Mei they can easily off-tank.