For anyone interested in great pianists, this is a must. Although there is repetition of repertoire across the set, with Horowitz it is always fascinating to listen to his different interpretations of the same piece. As someone who has collected almost all Horowitz recordings, I found plenty of new recordings here, most of which have been well reproduced so that the sound quality of even the older recordings does not compromise one's enjoyment. There is also the added bonus of a DVD of his Horowitz on Television concert. There are many highlights but one of the main advantages of this collection is that by issuing the complete concert recording we can note and appreciate the care with which Horowitz programmed his concerts and how he ensured that the content of technical wizardry was balanced with the poetic. The collection also helps to dispel many myths - there are many critics who tend to talk of Horowitz's repertoire being mainly the romantics (Chopin, Liszt, Schumann and Rachmaninoff), but he also played many modern works including Kabalevsky, Prokofiev and Barber). His playing of Beethoven, Clementi and Haydn is also suprisingly good and although he only played some of the shorter Debussy and Poulenc pieces, what we have is quite magical. A feast of delights!