I found the story really sweet but... there were many times where Mishe (the FL) got on my nerves. Not to mention, she always seems to be saved by the Prince. It was cute the couple of first time but it got annoying pretty quickly.
There was also next-to-none character development from how I personally see it.
Otherwise, it was a relaxing, kind of dramatic manga. A lot of suggestive themes in it but nothing too vulgar, and it's very sweet.
Sabaku No Harem