Yes, straight swords are considered effective and versatile weapons. While curved swords like the katana or scimitar often receive attention for their cutting ability, straight swords have their own advantages and are highly regarded in various martial traditions.

Here are some reasons why straight swords are considered good:

1. Thrusting Power: Straight swords excel at thrusting attacks due to their straight and narrow blades. The design allows for accurate and powerful thrusts, making them effective in penetrating armor or targeting specific weak points.
2. Versatility: Straight swords are versatile weapons suitable for both cutting and thrusting techniques. They can be used for a variety of combat scenarios, making them adaptable to different fighting styles and situations.
3. Defensive Capabilities: Straight swords provide excellent defensive capabilities. The straight blade allows for effective parrying and blocking maneuvers, providing good coverage against incoming attacks.
4. Balance and Maneuverability: Straight swords are often well-balanced, making them agile and easy to handle. Their weight distribution allows for quick and precise movements, enabling the wielder to strike and defend with speed and accuracy.
5. Historical Significance: Straight swords have a long history and have been used by various cultures and civilizations throughout time. They have proven their effectiveness in combat and have become iconic weapons associated with knights, samurai, and other warriors.

It's important to note that the effectiveness of a sword depends not only on its design but also on the skill, training, and technique of the wielder. Different sword designs have their own strengths and weaknesses, and the choice of sword often depends on personal preference, combat style, and the specific context in which it is being used.