This is a good collection, but many purchase it thinking that it is a new collection of Pet Shop Boys performances, or at least compositions. This is, however, part of a series that gets artists to compile collections of music that have been of influence, or that are in ways indicative of their favourite styles.
In this collection, one disc is done by Neil Tennant and the other is done by Chris Lowe. The collections are very different. Tennant's collection involves a lot of orchestrated music, not technically classical but classically oriented and inspired. Lowe's collection is very pop oriented, disco and hip hop. I recall an interview with Chris Lowe back in the 1980s in which he listed all the kinds of music that he didn't like - after a very long list, he laughed a bit and said 'I don't like much, do I. But what I love, I love passionately.' This interview clip was used on some edits of the song 'Paninaro'.
Both Pet Shop Boys pay tribute to Dusty Springfield, with whom they had a number one duet (top of the pops) in the mid 1980s, 'What Have I Done to Deserve This?' Even the differences in these two songs show some of the differences in their respective tastes. It is somewhat of a wonder that they were able to come together and produce music for as long (and at as high a quality) as they did - this was a good synthesis.
For those looking for new PSB music, this is not that kind of album. However, for those who are looking for a 'behind the scenes' take on influences and favourites, this is a great collection to have.