With a price tag of £69.99/$79.99 and a piece count of 807 it means you’re paying roughly 8-9p/9-10cents per piece, which isn’t too bad when you look at it that way. This set is also quite unique in that it contains the spoilerific Giant Man brick built figure. Also in the set is the airport control tower, a baggage car and a smaller version of the Quinjet.
The remainder of the build is the control tower and terminal building. First there is a metal detector screener leading to the waiting/secure area of the airport, which seems taller than it needs to be for the minifigures. I think the same effect could have been made with half the height, except that would not allow for an impressive height for the overall tower. However it does seem to be similar to many modern airports with the high ceilings. This area also seems to be someplace to check luggage as evidenced by the rather nifty conveyor belt that comes in a full part. The moving parts of the set include a revolving door (a very tall one, for the first floor) that leads from the secure area of the airport out to the tarmac, and of course the conveyor belt.

Correct - the hanger can only accommodate the biplane. That having been said, in order to accommodate the other aircraft too the hangar would have to be huge, with an enormous footprint, and a substantially increased parts count. As a result, I'd estimate a price up to double the current RRP which I suspect few of the target market would pay. LEGO therefore got the size of the hanger right IMHO.
Airport Passenger Terminal with control tower and conveyor belt measures over 11” high, 12” wide and 4” deep. Airplane measures over 7” high, 18” long and 19” wide. Service car measures over 1” high, 2” long and 1” wide. Luggage trailer measures over 3" long, 1" high and 1" wide. Fuel trailer measures over 1” high, 3” long and 1” wide. Mobile stairway measures over 2” high, 2” long and 1” wide
Copenhagen Airport is a compact airport with two terminals for check-in, but with a common post-security departure and transfer area, thus making transfers very smooth. The airport handles in excess of 25 million passengers a year, which puts it in the same league as Zurich and Vienna. It has also consistently topped the charts for Nordic airports, serving as a European and intercontinental hub for all of them due to its location.
So that's it... It's the first passenger airport set released in 6 years.  It comes with a jet, 6 minifigures, a terminal, and some equipment for servicing the aircraft.  Should you get it?  After getting it, I'm glad I got it on sale, but I'm still not sure it was worth what I paid.  I think it needs at least another terminal worker and then a pilot and flight attendant.  Also you're paying for a lot of BURPs to help smooth the aircraft out. The age range listed is 6-12 years old so clearly it is not meant for old farts like me looking for a good building experience.  However, if you're a LEGO CITY fan and you build your own MOCs to go with your city, it has some good additions.  If you're looking to build an airport terminal of your own, you'll find some useful parts to make it realistic.  We'll see if it takes another 6 years for an upgrade.
Compared to other major European hub airports, like Charles de Gaulle or Heathrow, CPH has a similar number of connections, but is much smaller in both actual size and passenger volumes, and can provide a calmer, more pleasant experience. Its location in the south of Scandinavia makes reaching most European destinations reasonable, and flying to destinations in the Baltic region and in Eastern Europe generally only takes half the time as from major hub airports in Western Europe.