This is the breakthrough series for Ken Akamatsu, his first success story. I'd read his later work, Love Hina and Negima Magister Negi Magi. So, I've been looking forward to reading this, his first real manga story.
It is interesting to see how his artwork has evolved. This early work has a much more primitive drawing style, especially when he's drawing his exaggerated SD (super deformed) expressions on characters. I can see Naru and Keitaro character origins in Saati and Hitoshi Kobe.
This story is cute, but not as involving as his later work. Very simplistic plot with cliched story devices, nothing truly innovative here. Still, it's a great opportunity to see the promising beginnings and early work of a successful manga-ka.