We just got our copy of Galactic Battlegrounds here at work yesterday (which is based on the Age of Empires engine) and it looks pretty sweet. I'm not a big RTS fan, but those who are should check it out. I've been hearing good things about it.
Customer reaction has been split on Galactic Battlegrounds -- It's really a matter of expectations. Some people want an all-new totally revolutionary RTS game. Other just want a (very) good RTS game. The former group is more likely to be the nay-sayers.
Personally, I think you guys will enjoy it. I was one of the main people who supported the Lucas Arts guys on this project. I can tell you that they understood and were really committed to making a game that played to the strengths of the (genie) engine and established RTS game conventions (read: they didn't try to make things different just for the sake of different or not-invented-here.). The game play is sufficently different enough (shields, flying units, power grids, etc) that the gameplay is mostly new, yet it uses the established strengths of the engine like good pathing, formations, hundreds of units per player, multiplayer that works, etc, ad nausium... Thus for a first release, no patch yet game, you'll find it to be exceptionally stable and polished.
Oh, and you can make your own scenario called "200 AT-AT's vs 1 Jar Jar Binks".

It's actually a first for Lucas Arts - and the guys making it had to fight and pay for the privlidge - Battlegrounds is the first game that gives end users all the Star Wars characters and content, and let's them make thier own missions and campaigns... and share them with the world.