It's a very nice product. The setting rules are a nice addition to the Savage Worlds rules and really fit the genre.
I especially appreciated the Random adventure generator. It waves some nice plots and allows you to prepare a basic plot in minutes. Then you thrust the characters in it, and wait for the action to start. Normal GMing, just made easier.
I also really appreciated the attention to politics between Red Martian cities and other races. Obviously, these give you even more plots waiting to happen. And it's a good thing that the Earthmen aren't totally overwhelming, like they would be in an ERB books. This way, you can have a nice mixed party.
All in all, I have only good words for this product.
[5 of 5 Stars!]