On the first Wednesday, 9/19, Express would have been pretty much wasted on anything except Stranger Things. I mean, it would have saved a few minutes here and there, but I was able to knock out all 10 houses without Express by 9ish. I ended up doing 23 house runs that night.
Last night would have been pretty painful without Express. Other than right at opening and right before closing, most houses had at least a 45 minute wait, sometimes hitting 70+. Stranger Things was 90+ most of the night. I did end up getting in 20 house runs last night with Express, but I was in the very front of the S&S for Stranger Things, and pretty much hustled every minute until they closed at 1am.
If I had to guess, I would expect future Wednesdays to be more like last night. But you never know. If you are at the very front of the Finns S&S, you could probably knock out 8 houses, though I have no idea how much time AoV takes.