My favourite part about Spy (as a whole in all that TF2 has got to offer) is that it's not mechanically challenging, but still provides as much satisfaction as parts of TF2 that rely on quick reflexes - like Rocket Jumping, or making Scout effective in pubs. The satisfaction comes in the form of knowing that you can make this ♥♥♥♥♥♥♥ class have impact after investing lots of hours and developing your own playstyle; few other games provide that.