the lining looks goopy but it's not sticky at all, just stained (these are beofre pics so the lining now looks a little better) - no clue what the substance that stained it was ....ya think conditioning it would deepen the color to and cover up the stain on the leather...it;s a nice bag in great shape....don't really care about the lining as much because I know it's clean.....on the other hand, I don't want to waste time and products for a lost cause..Did you figure out what that goop on the inside was? You can definitely be more aggressive with the lining. On the exterior, I don't know if more scrubbing is going to help. You already have so much color loss. If it were mine, I wouldn't be happy unless I could refresh the color.