Fucking no. Flay was like the worst character in the series, made even worse by the fact that the writers tried to throw in some fucked up last-minute character development that came out of nowhere and redeemed her for no fucking reason - time which could have been better spent developing other characters (Sai!) or making SeeD have a more coherent ending. She's a bigoted manipulative racist who has no qualms about changing fuckbuddies at the drop of a hat just to suit her own erratic irrational wants, and playing with the feelings of others for her own sick pleasures. Even the trauma from the death of her father doesn't redeem her one bit.