at first i didn't appreciate the approach apple was taking with Move, Exercise, Stand.
but they have won me over.
Move (calories) has proven to be very accurate.
Exercise is great.
Regarding Stand, I was sceptical, but have tested it out with 15 and 16 Stand Hour goals.
As long as you do move around purposefully, even for only a short time, in order to "get the blood flowing" and get your heart beat rate up by 10+ beats, it does seem to be helpful.
The change in Stand that i would like is for apple to allow us set the number of minutes that we need to be "Stand"ing in order for it to award an accumulated Stand hour.
i would like to be able for it to add all the time "Stand"ing and only award the Stand hour for the goal we have set.
in my case, i would like to set the accumulated goal per hour to be "Stand"ing for 5 minutes.
that would make more sense to me.
in lieu of a setting that would do accumulate the minutes for me, i use Indoor Walk and set the excercise goal for 2 minutes; and do that twice an hour, if i have been sitting at my desk or on the couch.
but anyway, even at 1 min it does seem to be useful if your total Stand Hours goal is set to something like 12 or higher.