Displays are mostly correct with regard to planes at the airport. However, I find that the arrival predictions are wildly out. On a long flight, it can be "early" by up to 2 hours, which is a bit ridiculous.
Excellent scenery. Only criticism is that the Instruction manual is hidden away in the actual Simmarket folder in P3D. Took me 3 days to find it.!
The trial version is too short to see the difference. After reading the reviews and watching the YouTube video, I took the plunge and bought it, although it is extremely expensive! It works exactly as advertised. I also tried on my heaviest set up (UK2000 EGLL and London VFR). This set up always gives an Out of Memory error, well this time it still gave the error but FSX kept on and I was able to land, albeit with no detail on the airport, just a black runway. Frame improvement is about 5 fps generally. But you will see a loss of ground detail on heavy demand settings as you get to lower levels. Well worth it though.
There must be something wrong with Mr Rogers set-up. What he says is so far from the truth as to be laughable. The airport is completely realistic, Jetways work and it is well detailed and is updated regularly. The frame rates are particularly good. For example I get 30 fps (locked) while parked,in a PMDG 737NG. Landing is similarly good. Heathrow gives only 20 fps when standing still. NMG is busy updating all its airports to high definition which no freeware supplier will do. Thoroughly recommended.