As a buyers agent one thing I do not provide is feedback!  You can be sued!  There have been several cases where the buyers agent under signed agreement to represent the interest of the buyer...and has shared with the seller....my buyer really likes the home (means they are willing to pay full price) or my buyer hates the home (means you've given away the buyers position!)

It is so easy to e-mail the response the sellers, They need some feedback to make it worth while for the effort they put into the preparation of the home.