If the anime has a good story and the fanservice shots could be cut out without it negatively impacting the story then I do not like them because I know that if I showed the anime to some people, while they would like the story they would not get over the fanservice shots. OTOH, anime like Strike Witches can have them and they make it even better. While I have not seen kiss x sis, it probably is the same.
However, I really hate the blatant censorship, that is, when part of the screen is blacked out or replaced by some image. If you do not want to show something, you can always frame the shot differently so the offending body part is covered by some object in the scene or is out of the field of view, like it is done on live action TV shows and movies.