The screen is really good, has a lot of useful tables on it and the artwork is awesome. The Included booklet includes a nice adventure, some short and useful rules for "off screen operations" and interesting information on some NPCs.
The adventure needs quite some additional effort by the GM to work propably and it would have been nice to include the game profiles for the NPCs. But on the other hand, if you buy this, you pay for the screen and not for a formidable adventure.
The only real drawback is, that they did not spend too much time editing the whole thing. Example: They manged to misspell "Macragge".
It does the job - has diffiuclty charts, horde rules and lots of the other niggly special rules that you need to refer to often but which aren't easily accessible via the chaotically laid out deathwatch book. The weapon chart is a bit out of date (since they errataed it) but otherwise the charts are supremely helpful. Also included is a booklet with some adventure / mission ideas, plot hooks and NPC writeups. All very helpful! Worth getting for £12 if you DM a couple of games a year.
Looks good, solid quality. Puts basic tables right in front of you. Helps keep prying eyes from notes. Seems to have helped speed up our game. Critical tables are not listed but the page numbers in the main Deathwatch book are on there. You also get a book with the screen of 31 pages including a 20 page adventure. There is also some NPC backgrounds and adventure ideas and brief possible mission elements in the book also.