The chances are that if you're reading this then you already know who Fields of the Nephilim are/were and what these albums are about, in which case what your probably really interested in is specifics such as the remastering quality and the additional tracks.
OK, first things first then, a note on the Beggars Banquet website states that Elizium was remastered from the analogue originals but that the other recordings had to be remastered from digital sources for various reasons and it does sound as though most of the recordings have been remastered (or at the very least re-EQ'd) with the exception of Earth Inferno which to me sounds identical to the original. The remastering is subtle and sympathetic and not harsh and "in your face" as some other remasters have been, and as such there is a noticeable improvement over the original releases on this score - Dawnrazor now has more depth, sounding less tinny and sparse, The Nephilim is certainly clearer (and not at all muddy) and Sumerland (from Elizium) now has the same sonic balance as the rest of the album.
Next then we have the additional tracks which appear either tagged onto the end of their associated album or on an additional disc of Singles and Mixes, giving us all 5 versions of Psychonaut, 4 versions of Moonchild and 3 versions of Blue Water to name but a few. We don't get the live versions of Power and Vet For The Insane from the Moonchild 12" but we do get the full length version of In Every Dream Home a Heartache (with the false ending that was previously edited out on the Revelations compilation). So on the whole, a fairly exhaustive collection of songs that (nearly) includes all the bands recordings from their Beggars Banquet days.
So, all in all, a nicely put together collection of all the Fields of the Nephilim's recordings (well, nearly) in one box set.