I think it was really good! I would have liked them to play up the "night and day" concept more?? I didnt really think it tied much, maybe if the MV had more of a plot. The song is amazing and very Kara. The album is okay as well, I kind of wish they would use more subtle instruments. Some songs are so "loud/noisy/" and harsh on the ears and its not because of the girls singing (which has improved) but because the producers keep using digital instrumentals instead of real/acoustics. I'd say this is one of the strongest kara comebacks but as an album it falls in the middle. I don't like "So Good" so I hope they promote 24/7 or something else as well.