Pretty good
Altogether everything was well put together. I've played all the previous ones however, and this one felt a little lacking compared to all the other ones. There was also a sense of inconsistency on the difficulties of the levels. The harder levels seem to be easier than the levels that were suppose to be less difficult. Part of that could be contributed to the songs, since some of the harder songs don't seem to have as much change in beat than some of the easier songs. And some of the harder stages don't have as many things flying from all direction compared to some of the easier levels.
Overall everything was put together well, but there were some inconsistencies with the actual mechanics/difficulties of each level.