Let's be real here; this product was a scam. We were tricked into paying for playtest content, and barely even got what we were promised with it.
It took until the release of a separate Eberron product for this book to include the Artificer class we were promised, and when it finally arrived, it was just copy-pasted from said other book without any care.
What do I mean by that?
Well, the first clue is the fact that the Artificer class has just been slapped into "Appendix D" of the book, after the visual handouts, and it is an appendix which at the time of said update wasn't even bookmarked in the PDF.
The second clue is in the "Replicable Items" tables for the Artificer's "Replicate Magic Item" infusion. It lists several unusual magic items you can replicate not found in the DMG:
Armblades, Prosthetic Limbs, Wand Sheaths, Ventilating Lungs, and Arcane Propulsion Arms.
Each of these items say in parenthesis, "detailed in chapter 5".
Chapter 5 is the chapter for magical items in this book. Now, true, you CAN find details of the Armblades and Wand Sheathes in here.
But curiously, there is no other mention of "Ventilating Lungs" or "Arcane Propulsion Arms" in this document - and the only other time "Prosthetic Limbs" are mentioned is in a brief section about beginning an adventure in a tavern.
In short, not only did we not get the full Artificer class, but we got it shoddily copied in after it was released elsewhere.
This product is not worth your money. If you bought it like me, I feel sorry for us all. For anyone else, buy the new Eberron book instead "Rising from the Last War", which is virtually everything in this book and more.
[2 of 5 Stars!]