Every time I think this manga is going to die down, it reads my mind and gives me exactly what I'm craving. The art is fantastic, the drama paced with miraculous precision, and the characters given life that transcends stereotype characters until you just fall in love with them. This manga gets better and better with each chapter, yet it's one that makes you want to read it all from the beginning each time something is added.
The only cons I can see is the tendencies to throw in ecchi moments... though I'm not quite sure that's a con since it's done so tastefully.
It's one of the few manga to reach my "buy list" before the series is complete.