What I Watched / What I Expected / What I Got - Let's break it down.

MFW ult charged

And the fact that he can actually deal not-insignificant damage while healing everyone, something Mercy can't do. Combined with the Pyro's airblast to keep enemies in check and he's a great asset that's tons of fun to play as. Really like his design, 10/10.
Also, wall riding > floating. Facts.