Overall, a fun experience. I think that MH was better than Scott. Max was missing the glitches and moving background but I'd imagine both of those are technically challenging to achieve.
Michael Scott's mouth seemed a bit wrong - I was thinking Michael J Fox but my wife then corrected that with Jason Bateman - which is much more like it. He knew Office references alright, but wasn't quite Steve Carell enough.
The default while it was listening could do with some work, I think - that was the least convincing bit; for Max he would have just glitched or even been completely still I would think. Michael Scott seemed too synthetic at this point.
Don't get me wrong, this was pretty clever and I enjoyed it, just trying to say what I found lacking without trying to sound like I could do better (which I couldn't!).