The Good:
Simplified skill system: Fewer skills, no ranks and rolling some feats like Track into skills (Tracking is a Trained use of Survival).
No dead levels: All classes and Prestige classes get something at all levels.
The Force is with you: Every PC has Force points and can use them when they need them.
The Bad:
Feats: The first PCs I made were the crew of Firefly and which one was the hardest to create? Kaylee! So many of the feats are combat oriented, creatng a non-combative PC is hard. I had to create a new feat, (Second Chance: that allows you to chose a skill that you are both trained and focused in and you can now re-roll a skill check) The feat list does need to be expanded from just combat.
The Square Book: To be honest, if I was not looking for this book, I would have walked right by it on a shelf because it does not look like a role playing book (or a WotC book).
Lack of Stuff: There are only a few vehilces, gear and iconic NPCs. Part of this is due to the smaller size of the book, but most is due to the book trying to be a Player's Handbook, Gamemasters Guide and a Campaign Guide in one book.
The Ugly:
Errata: Yeah, once again there are a lot of little mistakes in a WotC book (Surprise

surprise)
Many seem to be changes in the rules that where other mentions were not updated:
Vader is trained in Mechanics, but it is not a Jedi skill.
In the sample gamming session, the Jedi Sia-Lan has 22 hit points, but on the same page (13) it says Jedi start with 30 + Con mod.
Padme has a Talent "Wanted Alive" that is not in the book.
The sample Bounty Hunter on page 283 has 4 non-heroic levels, but the Bounty Hunter PrC requires 7 heroic levels.
Cybernetic Prosthesis cause a -1 penalty to Use the Force checks, but neither Darth Vader (4 cyber limbs) and Luke Skywalker (1 cyber hand) have any penalties in their stats.
Also, Luke's stats are for episode VI, but do not include Force Grip that he used on the Gamorean.
Overall, I like it!
D&D can be overcomplicated for those just starting to game, so a simplified game like this is better to introduce new people to gaming. The one thing that will be life or death of the Saga system will be support books. Personally I would liked to have seen a PHB, DMG and Campaign guide, but we will see how the next two books do; The Force Unleashed and Starships of the Galaxy (See
Amazon.com )
And BTW, let me be the first to call for a Gamma World Saga System book. We got Droids, vehicles and psychic powers here, just make adjustments for Mutations and defects(if your Defect points exceed your Constitution, your PC become unplayable).