Agree they look good as a cosmetic addition, but u know what, they actually work brilliantly.
Have them on my wagon, they are awesome in the rain u can have the windows 10mm - 25mm down in heavy stuff and u stay dry as well as reducing fogged up windows.
In summer when u are parked in the sun have ur windows down 5-10mm and u cant see this with the added bonus of letting some heat out.
Just get them genuine from Subaru, about $200 for the wags - 2 piece, not sure on Sedan prices - 4 pieces. Don't think they are available as an aftermarket part.
This is 1 part from Subaru Stealership I say is worth the coin they charge.