Yes, the gameplay is stale. I've said in previous discussions about the "X Warriors" series how much I dislike it them.

But the fanservice is great. I haven't played the demo so I don't know what's in it, but the actual game has a good bit of content. I probably won't buy it again though. (I only bought this because the PS3 had nothing worthwhile on it at the time other than Virtua Fighter.)

It's like Mario Party. The game itself is pretty lame. A few of the minigames might be decent fun, but it's got Mario and co. in it. Fanservice. Or milking. Probably both.

Besides, it's way better than the other next-gen Gundam game.