At first I just played the demo, even though it was just 2 songs available, I spent at least 3 or 4 hours on them because I enjoyed them so much, and when I got the game i couldn't believe how much more there was. Not only do you get all these songs to play, you level up characters and can unlock new ones and there are even more songs that can be downloaded. I've already gotten over 100 hours of gameplay and still havent even unlocked all the characters, but that's probably due to wanting to level them up too.
If you're a fan of Final Fantasy music, get this game. Even if you're not that good at rhythm games, the songs on basic mode are easy enough for anyone, and the songs on ultimate mode are great for people who want a challenge.
I love the songs from final fantasy and being able to play along to them is just wonderful. I love it and even though I have only just started playing it it looks like it will take a while to get through the whole content which is great.
The only issue I have at the moment is that the RPG element it has, with having party members and leveling them up seems slightly confusing and a little pointless, but this might just take a while to get used to.
Other than that I am very happy i bought this and would recommend it to fans and children alike as it is a cute and heartwarming game.