I just finished Suzuka yesterday and I thought it was excellent.
This manga really grew on me as did the main characters.
Spoilers
At first I didn't think too highly of either Yamato or Suzuka, Suzuka was demanding, very critical, and some times just plain annoying. Yamato wasn't too bad I guess but him taking advantage of Honoka put him in my bad books for a while.
However towards the end of the series (after Suzuka realizes she's pregnant) her behavior become much more likable, Suzuka becomes much more warm towards Yamato (even though she shows her cold side to those she cares about, I didn't like it). I'm very glad both of them decided to keep the baby, many people in their situation would not I'm willing to bet
END SpoilersAll in all it was a great manga and I'd recommend it to those who'd like to read a romance manga that is more realistic in nature (the characters have to face the consequences of their actions and they do a ton of maturing).