What we have here is a hodgepodge of old and (one) new material for piano. "China Gates" and "Phrygian Gates" is actually considered to be Adam's Opus 1, so to find out that his very first mature work does not resound with the same punctuation and feeling that previously works have, like "Harmonielehre" or even the recently released "Naive and Sentimental Music," does not mean that Adams is in anyway losing his "touch" or is begin lose his creative spark. Instead, these two pieces should be listened to and enjoyed for what they represent in terms of John Adams' historical work, or the work which has gotten him to where he is today.
Similarly, "Road Movies" was composed in 1995, "Hallelujah Junction" was composed in 1996, and the newest work, "American Berzerk" was composed in 2003. "Road Movies" is actually a very soothing, contemplative work, but (true) does contain the same expressiveness felt in other works of art by Adams. "Hallelujah Junction" may be the most disappointing piece on the album, but I'm not sure that it's supposed to be taken as seriously as some Adams' fans would like to take it - such as on the level with "On The Transmigration of Souls" or "The Death of Klinghoffer." Adams himself acknowledged that "Hallelujah Junction" is the name of a truck stop on US 395 and that "it was a case of a good title needing a piece, so I obliged by composing this work for two pianos."
No, this isn't Adams' best work, but I definitely think that it surely lives up to his other greatest attempts. Plus, as an album containing solely works composed by Adams for the piano and not for orchestra, this is a nice breather and definitely an excellent addition to one's collection of piano music or for fans of Adams himself.