I experienced no change after a drain-and-fill of Honda OEM ATF (DW-1) and nothing changed. The car shifted well as when we first bought it with 60k miles.
It may have been coincidence, but after a single drain-and-fill using MaxLife I started experiencing a 1-2 flair and minor other oddities; no major changes, but very noticeable.
After 2 more drain-and-fill with OEM fluid it's back to normal. Unfortunately, my data is ruined, because I took the car into the dealer shortly after the 1st drain-and-fill for them to apply a TCM update, which could very well be the cause of the better shifting.
Unfortunately, the degraded shifting coincided with the MaxLife, so I will no longer consider anything but Honda DW-1.