Benjamin Rubenstein’s review published on Letterboxd :
This movie is inspiring. It makes me think that everyone can become an expert in one thing (some people can become experts in more than one), even if that one thing is bizarre or not profitable or seemingly pointless. Improv is, to me, none of those things, though it is certainly not the activity that first comes to mind when I think "expert." These two guys are supposedly two of the best at improv, and it's awesome to see the best at any activity and realize how much work they put into that activity.