Though it's not the best in the suikoden series, it certainly isn't the worst!
The game will be fun for those who like Rpgs with choices and effects of your choices. Your ship will evolve as you progress through the game, giving you a feeling of satisfaction.
Some negative aspects of the game are these.
1. Too many battles when at sea. Frustrating to some.
2. Settlements and towns are extremely underwhelming, unrealistic
3. The game is a tad bit short
4. Ship battles are not used to their full potential in the game
5. It could be compared to the size of a modern DLC