WGs facing similar transport decision

Marshall,

        There are several examples where working groups picked BEEP as
transport. I assume none of those groups regret their choice now. Can
you confirm/deny that they are all satisfied with BEEP, based on your
personal information/perception?

And perhaps more importantly, do you know of any group (dead or alive)
that have chosen a custom transport after seriously considering and
rejecting BEEP? I wonder if we can learn from others mistakes here...

Thank you,

Alex.