Is the Tamron SP AF 60mm f/2.0 Di II LD Macro Lens sharp? This page visually answers that question. Shown above are 100% crops from a lab-captured 60mm f/2.8 test image. Observe the contrast and resolution of these results.
Is the Tamron SP AF 60mm f/2.0 Di II LD Macro Lens set to 60mm f/2.8 sharper than the Canon EF-S 60mm f/2.8 Macro USM Lens set to 60mm f/2.8? The image quality comparison above also answers that question. Switch between the results to see the sharpness differences between these lenses.