After the many complaints about fs2000, microsoft responded with fs2k2. We must do the same with 2k4. I'm not unhappy with 2k4, however I am feeling a let down. 2k4 is not fs2000, but It was rushed out and overly hyped. 2k4 is better than 2k2 but over all not by much.
Here is my opinion so far.
Weather is a major upgrade from 2k2. However I was flying in heavy smog with maybe 3 miles visibility and within 1 second it was clear skys. I thought this was eliminated. I guess only clouds dissipate slowly. However I still give 2k4 high marks for the weather.
ATC is improves slightly. One annoying problem with 2k2 is when flying vfr into a big airport 2k2 connects you directly to the tower instead of tracon. I thought this would be fixed in 2k4 but nope. ATC in 2k4 is not much better than 2k2.
GPS is improved. I haven't used it much so far but I like what I see for now. Thumbs up.
Over all graphics. Some graphics like runways and taxiways are improved, but others are a step backwards. The water sucks. The autogen have few more buildings and trees. The grand canyon is exactly as in 2k2, no improvements. I would give only a slight improvement in this area.
I was expecting more improvements but that didnt happened. Microsoft had a shorter amount of time to develope this version. Microsoft will have extra time to develope 2k6 and we should insure they do a better job.