Oh, the art... this mangaka really knows how to draw men. Men wearing suits, men wearing polo outfits, men wearing nothing---yes, she draws them like real men. They don't resemble prepubescent girls with gigantic sparkly anime eyes. They're not Schwarzenegger body builder types, either. They are just gorgeous to look at. Yummm.
I'm also impressed with the level of research the mangaka conducted for this work. I was admittedly a little hesitant to read the story at first because it was set in America---and I thought it highly probable that the story would convey a very Japanese perception of the US (similar to how Hollywood productions are always skewing portrayals of other countries). Happily, though, I was wrong. Makes me wonder if the mangaka spent a good amount of time in the States.... Though there are slight exaggerations here and there (it's yaoi, it's a little dramatic, what do you expect?), a sense of realism pervades the storyline and the characters' relationships, a realism that is reinforced by an accurate depiction of college life in New England (or maybe life in New England in general).
The plotline doesn't travel in a straight line; a significant portion of Volume 1 is devoted to the professor's past---but this flashback is a poignant story in and of itself. As a stand alone it would make a marvelous one-shot. The characters are real and complex---you can't decipher them easily, so you can't easily predict what happens, either. In a typical yaoi mangaka, a character will tell you what's on his mind: "I'm worried that my boyfriend doesn't take me seriously! I'm worried that we'll break up! Wah!" But here, there is a lot more showing than telling. Through their words and actions, you get to gradually see all the lovely and sordid layers of their personalities. And they are pretty damn interesting.
Some reviewers here have referred to the "ending" already, most likely because they commented before Volume 2 came out. But it seems the story goes on! Very excited to see what happens, heh. Unfortunately it seems that the group previously scanlating the work has ceased its activities (the LiveJournal link shows that the account was purged). But I urge you to read the story, anyway. Works of this caliber are few in number.