Billy Joel is easily my favorite artist to play. From what I can tell, these piano transcriptions are virtually identical to what I hear in the studio recordings. While this sounds like a wonderful thing (and believe me, I wouldn't have it any other way, arrangements that mix the vocal part into the right hand on the piano aren't worth the paper they're printed on), you will find that without the other instruments, *especially* the bass, you do lose some of the song. A lot of my favorite songs have the rhythm carried by the bass with the piano more in the background, but even with that limitation they're still fun to play, you just have to improvise a bit.
My only complaint is that there aren't more songs!