So long.
The last tie-up CD with Idolmaster Radio. While Vocal Master made a hit with every track, Long Time seemed to be a hit-and-miss. Longtime listeners will definitely be moved by the last track, but overall every track sounds... tinny. It may be nothing more than a deviation from the standard Imas-esque music style, but it's even less of "Chihaya and Azusa-san singing," and more of "King and Mingos singing."

Definitely try previewing tracks somewhere before purchasing.