Great product with a straightforward, easy-to-follow process for generating interesting sapient alien species for your Traveller setting. Includes clear examples. It references a few things in the Mongoose book like the Behaviors subsection in the Encounters chapter, so you'll want that handy. It only took me a few minutes to randomly create an interesting alien for the setting I'm putting together for my next game.
The only thing I wish it had was a printable worksheet, because I'm unorganized, but that's a pretty minor quibble. In all, highly recommended if you want to freshen your game up with a few new species.
p.s. The author also has a great blog over at his site and happily (and quickly) answered a few of my questions.