This manga will be enjoyable for people who are not veteran shoujo-readers and for those of us who are able to sit back and laugh at cliches. It's the kind of story to read on a summer day when you don't have anything else to do and you need something cute to laugh at.
The plot really doesn't make much sense logically (Why did the heroine have to be his replacement pillow? Couldn't he have just gone to any store and bought one?), but there were a few scenes which made me giggle a lot. At some points, I wanted to roll my eyes, but at other points, this one-shot really surprised me with its bubbly sense of humor.
If you enjoyed the general look/feel of this manga, I'd highly recommend you try reading some of Aikawa Saki's works. This one-shot's art somehow reminded me of that mangaka's style.