My thoughts after playing 1/3 NL for a couple hours:
Bellagio is the only room (I think) that has 6 handed tables.
Other rooms state that games are a maximum of 5 players.
Bellagio gets around this by having plexiglass...I guess the other rooms don't have it (I know the Orleans doesn't).
Maybe 40% of the players had a mask on, so facial expressions are hidden.
Makes sense to put yours on when in a hand.
Plexiglass makes it difficult to carry on a conversation, so the players paid more attention to the game.
Now that I think of it, very few phones were being used.
Game is much faster than 9 handed, which is a plus, as is the $4 max rake.
Race and Sportsbook was open and they had quite a few couches spread around...not much change in the seating.