Finally realism!

Some say perhaps: So much money that is already available by default in FSX for a machine?
But- The 747 MS is just a simple toy, unlike that of PMDG, can the FMC (Flight Management Computer) fully use (and must also) you have full control of all hydraulic and fuel systems etc. etc ...
JUST a must for any FSX pilots like to REAL MAG.
I could list a maximum of 4 Dummies in the cockpit, everything else (really every small lever, even the fire safety test system) can actuate.

Another great future in my opinion: At the start and during landing has finite this computer voice that one gives information, at landing on the height above ground (from 500 feet).

Although you need some time has to be incorporated, but already makes huge fun, I can only say buy, it is worth.

little tip: The checklists have been completely transferred onto the Kneeboard (shift + 10), they do not print!