welcome and great pick up. once you get a taste, it's hard to go back to other rides..
i'd stay away from bras in the winter, only because once the water gets under there and freeze, bake, freeze, whatever, it'll ruin your paint. your car looks much nicer w/out it, so why cover it up?
but i would use the bra during long distance trips at high speeds, and (here's somethign i picked up here) for your track days, if you take your car to the track that is. i thought about picking one up for long distance trips, but since i rarely go anywhere far i decided not to. also most places don't stock one for my front.. so i have to special order one, and i'm not sure how much i'll use it.