Damascus steel is often regarded as good due to several factors that contribute to its reputation:

1. Aesthetic Appeal: The distinctive layered pattern of Damascus steel, known as the Damascus pattern or Damascus steel pattern, is visually striking and highly valued for its aesthetic appeal. The intricate and flowing patterns make each Damascus steel blade unique and captivating.
2. Strength and Durability: Well-made Damascus steel blades can offer good strength, toughness, and durability. The layered construction and the specific combination of steel alloys used can contribute to the blade's ability to withstand impacts and resist fractures. This makes Damascus steel suitable for various cutting and combat applications.
3. Edge Retention: Damascus steel blades can possess good edge retention properties, allowing them to maintain their sharpness for extended periods of use. The specific steel alloys used and the heat treatment process influence the blade's ability to hold a sharp edge.
4. Flexibility and Resilience: Damascus steel can exhibit a desirable balance of hardness and flexibility. The layered construction and the specific forging techniques employed can enhance the blade's resilience, enabling it to withstand bending or lateral stress without breaking.
5. Historical Significance: Damascus steel carries a rich historical heritage and cultural significance. Its historical use in weaponry and the legendary reputation of ancient Damascus steel swords contribute to its allure and desirability.

It's important to note that the quality and performance of Damascus steel blades can vary depending on various factors, including the specific steel alloys used, the craftsmanship involved, and the heat treatment process. While well-made Damascus steel can offer desirable properties, the overall quality of the blade depends on the skill and expertise of the swordsmith or manufacturer.

When considering a Damascus steel blade, it's recommended to consult with experienced swordsmiths or experts who can provide guidance and ensure the quality, performance, and authenticity of the blade.