There are lots of reviews coming in so I wanted to make a post to consolidate all of them.

PC Gamer - http://www.pcgamer.com/review/sins-of-a-solar-empire-rebellion-review/

“Bigger and more stable than ever, Sins of a Solar Empire: Rebellion will happily strip-mine your life of its free time.”

Game Informer - http://www.gameinformer.com/games/sins_of_a_solar_empire_rebellion/b/pc/archive/2012/06/12/review.aspx

“Rebellion isn’t a massive departure for Sins of a Solar Empire, but it’s a good enough reason to get back into the game or to discover for the first time one of the more interesting evolutions of the strategy genre in recent memory.”

DualShockers - http://www.dualshockers.com/2012/06/12/review-sins-of-a-solar-empire-rebellion/

“Sins of a Solar Empire: Rebellion is certainly worth the investment though, for both old fans and new players looking to get a first taste. Definitely a must-have for anyone who is a fan of the genre. I can’t give an expansion pack much higher praise then to say again that it expands the game and adds requested features without breaking any of the old mechanics. Now get conquering and keep your eyes out for those damned Space Ponies!”

Quarter to Three - http://www.quartertothree.com/fp/2012/06/12/rebellions-stellar-overhaul-to-sins-of-a-solar-empire/

“Rebellion also supposedly upgraded the graphics. Frankly, I didn’t notice. I’ve always thought Sins of a Solar Empire is an absolutely gorgeous game. Can it get more gorgeous? You’ll have to tell me. I’m too busy digging on the new gameplay and pausing the game every five minutes to take screenshots.”

RTSGuru - http://www.rtsguru.com/game/462/article/3243/For-the-Rebellion-Sins-of-a-Solar-Empire-Rebellion-Review.html

“Rebellion is a VERY solid 4X strategy title. As a standalone expansion, it does very well at balancing between long time Sins fans and newcomers to the series. Both should feel right at home and have a lot of fun playing Rebellion.”