Yes, a sabre can be a good sword depending on its intended use, design, and the specific context in which it is employed.

Sabres are known for their curved blades, which offer advantages in slashing and cutting motions. The design of a sabre blade allows for effective strikes with the cutting edge, making it particularly suitable for cavalry and mounted combat. The curved shape allows for better reach and optimized cutting angles when swinging the weapon from horseback.

Historically, sabres were widely used by cavalry units in various cultures and eras. They were favored for their versatility, maneuverability, and effectiveness in swift, mobile warfare. Sabres played a significant role in cavalry charges and engagements, where their slashing motions could cause devastating cuts and incapacitate opponents.

However, it's important to note that the effectiveness and quality of a sabre depend on various factors, including the craftsmanship, materials used, and the purpose for which it was made. High-quality sabres made by skilled artisans with appropriate materials can offer excellent balance, durability, and cutting ability.

Like any weapon, the value and quality of a sabre can vary, and it is crucial to consider the reputation of the manufacturer or maker when evaluating its quality. Additionally, the sabre's purpose and intended use should align with the requirements of the user, whether it be for historical reenactments, martial arts practice, or decorative display.

Ultimately, the quality and performance of a sabre, as with any sword, depend on factors such as craftsmanship, materials, and its suitability for the intended purpose and context.