I'd guess it's as good as the
P4 but maybe not quite as good as the Inspire at handling winds. I've only had one occasion where winds gave me problems with my i1 Pro and that was vertical winds near a cliff. At one point I climbed a portion of the cliff to peer above it and when I tried to come down I needed to give full stick down to come down at all due to the strong updraft. I wound up moving laterally away from the cliff wall and was able to more easily descend after doing so. You don't want to panic when you have a problem.
See video clip for location -- the Moki Dugway in southern Utah.
Brian