I think that the chemistry between the couples ranged greatly.
I thought the couple who was smoking pot on their stoop were terrific together. The couple with the woman on a diet were dreadful. Everyone else fell somewhere in between.
I don't think the gender swap did the material any favors. I also think the show is a period piece. It needs to be set in the 1970s unless you do a complete overhaul. Too much of the dialogue sounded dated.
However, I accepted the premise of this production and enjoyed it.