I've installed the game - standard stuff - 3 disks - one is printed and the 2 other disks are 1 single disk with the data on each side. However the 2nd & 3rd Disk looks like a cheaply manufactured disk.
GOOD: Once installed on FSX, the graphics are fantastic, much more real with a good night lighting. Mesh terrain is pretty good too.
BAD: However like Google Earth/Maps there are no 3D buildings, trees or houses. Also a few of the airports are like 100 feet above normal mesh, which is out of place - such as Plymouth or Newquay airports. However airports like Exeter and Bodmin are fine.
Apart from the 2 bad points which anyone can get used to, its pretty good so it get 4/5.
Oh, if you visit Just Flight website you can get the area around Shoreham airport scenery for free! - gives a glimpse of what the product is like.