I think this album is superb. If you're new to Marconi union, this is as good a place as any to start, every album they do is accessible.
If I were to try to describe the stylings to a MU inquisitor, I would say imagine pink floyd without the rock and lyrical elements, like the long intro and outro of "shine on you crazy diamond" then when you sit and properly listen, (preferably through headphones) you get to hear all the intricities of the compositions. That's not to say that the use of rhythm and gentle drums aren't included, they are but they don't intrude on a relaxing experience.
What I like in an ambient album is to be able to put it on and not be shocked by a loud track in the middle, people listen to ambient for four reasons, to put on in the background, to listen to properly, to relax generally and to help you sleep, MU albums do all four for me (with the exception of their Glassworks EP, though I would still recommend it)
If you like ambient or any of the variants there of, or would just like to relax, then buy this album.
Ps. With this album came a link to a free MU album (don't think that offers still on) but I had problems getting it, so I mailed MU through their website to say about the problems I was having, and one of the artists of MU (Richard Talbot) emailed me back personally and sorted the problem. Now there's customer service!