During my visits through forums, I come across this and his other current work Kimi no Iru Machi as being 'classic' Seo works. I had not read either of them, so I couldn't say what that was.
Until now.
It's your classic romance story. I got pangs of nostalgia - and it's not because my high school life was like that, but because I've seen the formula used in Suzuka a lot. I'm going out on a limb here and point at Love Hina - I guess mainly because of that hole in the wall.
It's not as bad as some other ones I've read, but then again, not many romance manga really stands to memory, aside from the most recent ones.
The idea is good, I guess, but then again, his other work (Kimi no Iru Machi) is pretty much Suzuka + his life back in Hiroshima - track & field. And even in Suzuka the track and field kind of get pushed aside in the later chapters.
The story is okay. I have to say it does get repetitive, but I also have to say that I guess that's what unrequited love feels like. I also have to mention that it's not as much a harem as much as it is romance - the guy does have some standards.
The art; beautiful. Nothing much to be said about this, I can't really pick at a flaw... well, if I had to, I guess one of the girls kind of looks like Suzuka - but I also guess that that was part of her charm, and consequently, why Yamato has trouble deciding.
What else? Ah, I felt the ending felt rushed. After building up all that for 16/17 volumes, it only takes 1 chapter to resolve the problem. Again, not the worst ending in the world (that, I believe, belongs to School Rumble) but, you know.
I came across Suzuka while looking for manga that was similar to any of Adachi Mitsuru's work. The best way to compare the two is I suppose Suzuka (and, Kimi no Iru Machi) are more focused on the romance aspect and, more targeted towards the teens towards the young adults. I can't say that Seo balances both romance and sport at the same time. He's either one or the other (and I suppose he's given up on one, good choice) so Suzuka was, to me, a testing field for his current series.
There are times where the series works, and times where it's slightly frustrating. However, I'd be flat out lying if I said I hated this series, so yeah, give it a read if you want a romance that stays away from what most shounen romances try to do (pour on and on more female protagonists) with a flavour of track and field.