Since TDL did a nice review of Megaman Star Force 3, which you can view using the link at the end of this paragraph, I'm putting up my own thoughts about the game and some of my own specific praises and complaints.
[link]

So TDL does hit on several things I like and hate about the game, but there are a few things I dislike that he didn't mention. First, what he did mention for those who are too lazy to read his review (shame on you!):
Pros:
+Noise system is well done and intuitive, plus gives reason to overkill as much as you can
+Geo isn't emo anymore.
+Better plot than the first two games in the series.
Cons:
-Game has poker references leaking from every pore.
-Voice acting is cringe-worthy at best, some lines are left incomplete or are run together.

And I agree with all of that. Now here's what I like and hate about the game:
Pros:
+Finalizing in multiplayer means that you lose the ability to hit the enemy through invis, so there's a somewhat tough decision if you get good cards in your custom screen.
+Rogue ZZ is an easy to beat boss that will always give you X cards, really powerful versions of regular standard cards.
+Noise forms give a bit of nostalgia back to the first game.
Cons:
-The combination of Gemini and Wolf noises is WAAAAAYYYYY to overpowered for its own good. Gemini will paralyze when using swords, Wolf raises their power so they hit harder than they would normally.
-Rogue noise. Most of the standard cards require lock on in order to contact the enemy. Once Rogue noise reaches vibrant noise level, it can't be knocked below 50% and gains the ability to break lock on.
-tl;dr: this game has MAJOR balance issues that aren't that hard to discover.

Since Rogue noise has no weakness, the final boss can't knock you out of vibrant noise form, which makes him a complete joke.