Product review (5 stars): No leaks so far.  These are working better than the original. Hard water deposits from the drips have declined considerably.
Since the Samsung DA29-00003G went to $50, it was time to find an alternative. Ill let you know how it goes. These arrived promptly, packaged fine, and appear to match the specifications. It installed the same as the original, and did not leak. Nice it came with a protective cap for the gaskets.