This product introduced a class whose concept is that it combines magic and technology. In concept it reminds me a lot of the Eberron Alchemist, but the execution is very different. I have not played the class nor I have I seen it played, so I am not going to comment on who well or nor the mechanics work.
The write-up was done very well and the editing and layout were top notch. The pages flowed nicely and I did not notice any spelling or grammatical mistakes. The artwork was superb at conveying the concept of the class.
I fully intent to use this class in my home games.
[5 of 5 Stars!]