Unfortunately boring and very bland.
Unfortunately, this game does not compare to AW at all. The story is very generic, the characters are very shallow and not fleshed out at all, and the units are quite boring.
The fight scenes are also pretty boring and are quite bland. While they look nice and the game's graphics are quite good, its gameplay isn't up to par.
One problem with this game is that it's almost an exact rip-off of AW. In the game, you play as an Alliance against a "Dark" force (Black Hole anyone?)
Also, different CO's have "CO Abilties" (cough, CO Powers, cough) which allow them to turn the tides of the battle. But the powers are all quite the same and have very little variation to them at all.
Overall, I have to say, coming in and expecting an Advance Wars like experience, this game ultimately falls short and is a sadly boring experience. Perhaps I was expecting too much of this game, to be able to live up to the Advance Wars status, but even then, it fails to do that and is yet another bad game to add to the PSP list.
While it does have some merits, lack of interesting story, characters, and overall bad gameplay prevent this game from being great.