Imported stl, received manifold problem
Repaired it in s3d and Removed orphaned/duplicate...
Printed it - Result: - bad print!
Did the following curiosity test in step-wise manner:
Imported the same stll, received manifold problem (screenshot One/Two)
Identify self-intersections (screenshot One/Two)
Repaired it in s3d and removed orphaned/duplicate... This made it even worse (screenshots Three/Four)
Repaired it in Netfab (stand-alone verson on my computer) only problem is hole (same as screenshot One).
Exported it, imported into s3d - no manifold/triangle... problems.
Point being, the repair/healing feature is not trust-worthy, thus, worthless (this software should be either Free until they fix bugs, and certainly they should publish fixes more frequently than once/year