Having read 11 chapters, I have given this manga an overall rating of 8. I have greatly enjoyed reading it and wish a lot more chapters had been released.
PROS: I like the fluffy art-style, I enjoy the story, the characters are cool people, the story progression so far has been good and well paced and its 4koma style fits it well.
CONS: It releases rather slowly (though this is probably the translator's fault) and there are some minor plot holes when dealing with the girl's memory capabilities.
The first chapter is a very good indicator of what the rest of the chapters feel like and
thus, just reading that one should be a clear indicator of how much you may enjoy the rest of the chapters.
I would highly recommend this to most people who like shoujo manga and want a very cute story with romantic elements where the boy works hard to gain the trust and love of a very reserved girl.