>>Doesn't matter if they "look good." The point is, are they any good?<<
Good enough that they're still there after nearly a century, most of that in the water. The rivets on the Titanic are good enough that most of them remained right where the riveters put them even after a 30+ knot collision with the ocean's bottom.
There's a lot of sound and fury over the materials that the ship was built of which may not be entirely misplaced in some instances. The problem with all of that is that it's over-rated. Absent the interaction with an iceberg, and through hull damage along the ship's length which no vessel could survive, we wouldn't even be having this conversation.