It wouldn't be much of a feeling during the day. Did you test it out at night?
Like ProjectIS said, it's really noticable when it's cold. Last night mine felt like as though i openned the fridge (just but hovering my hand over the buttons).
yeap i usually drive my car more at night so yeah
it was 4c when i tested it
only thing was when i had the sunroof on titl it i felt cold air circulating and then closed it
nothing