First off, let me start by saying that I am a big fan of the original two Power Station albums (The Power Station and the sadly overlooked Living In Fear). Andy & John Taylor of Duran Duran put together a side project that really kicked some ass, and proved once and for all that they really could play. It's dance music, but the most rockin' dance music ever recorded. But, the band only recorded two albums, so a compilation is completely unneccesary, especially since the second album didn't feature any hits (despite the fact that in many ways it featured better songs). So, if you just wanted a collection of hits by this band, then pick up the first album. But this compilation throws in a couple of rare tracks, which would really only appeal to fans of the band. But if you already own the first two albums, then you are spending money really on three songs.
Regardless, if you are fan of Duran Duran or The Power Station, then just wait for the new deluxe edition of the first album. It will feature at least two of the rare tracks from this album (don't know if the live track will be included, but that wouldn't be much of a loss, since it features Michael Des Barres on vocals, because Robert Palmer refused to tour with the band), along with a bonus dvd. And if you're a casual fan of eighties music, you are much better off buying a compilation cd of eighties songs that feature Some Like It Hot or Bang A Gong...since those are the only two songs many people care about anyway.
This really only would appeal to someone who was told that The Power Station were great, and are curious. Other than that, don't waste your money.