There are 3 cardboard boxes with more Easter eggs. We get a few references to Marvel organisations such as A.I.M., who you may remember from Iron Man 3 as an R&D agency run by Aldrich Killian, Hammer, one of Stark Industries primary rivals which made an appearance in Iron Man 2, bankrolling Whiplash and finally a box with the Stark Industries logo on it.

Agent 13 has a pretty plain appearance, with caramel-coloured wavy hair, and a black, spy-like top. Her torso has some nice details, with sharp, angular lines that all combine to form a rough outline of an upside down star. She has plain sand blue pants and rocks a sub-machine gun accessory. I like regular LEGO firearms, so it’s very nice to get one in this set as they’re fairly uncommon.
The capabilities of the Mindstorms range have now been harnessed for use in Iko Creative Prosthetic System, a prosthetic limbs system designed for children. Designs for these Lego prosthetics allow everything from mechanical diggers to laser-firing spaceships to be screwed on to the end of a child's limb. Iko is the work of the Chicago-based Colombian designer Carlos Arturo Torres, and is a modular system that allows children to customise their own prosthetics with the ease of clicking together plastic bricks. Designed with Lego's Future Lab, the Danish toy company's experimental research department, and Cirec, a Colombian foundation for physical rehabilitation, the modular prosthetic incorporates myoelectric sensors that register the activity of the muscle in the stump and send a signal to control movement in the attachment. A processing unit in the body of the prosthetic contains an engine compatible with Lego Mindstorms, the company's robotics line, which lets the wearer build an extensive range of customised, programmable limbs.[54][55]

Bag 6 starts the airport terminal.  Like most CITY builds, they are meant for play so it's really only half a building.  It includes one minifigure and the revolving door entrance.  While the entrance is cool looking, it's about twice the height of a minifigure and there isn't enough physical space for one actually to fit through the door.  I'm not a fan of the design.

By 1954, Christiansen's son, Godtfred, had become the junior managing director of the Lego Group.[13] It was his conversation with an overseas buyer that led to the idea of a toy system. Godtfred saw the immense potential in Lego bricks to become a system for creative play, but the bricks still had some problems from a technical standpoint: their locking ability was limited and they were not versatile.[3] In 1958, the modern brick design was developed; it took five years to find the right material for it, ABS (acrylonitrile butadiene styrene) polymer.[11][12] The modern Lego brick design was patented on 28 January 1958.[15]

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.
The body of the plane is built with five seats for passengers. The wings are added next with what I think are filler stickers added to the top of the wings. There is a small galley with sink and oven in the front of the plane right behind the cockpit. The cockpit uses only one sticker to show navigation equipment - the other is printed, which is always welcome (though not a new piece). A lavatory is installed in the back, and then the inside is complete. There is an odd choice for the door to the lav - a swinging door. Not much opportunity for privacy!
The programmable Lego brick which is at the heart of these robotics sets has undergone several updates and redesigns, with the latest being called the 'EV3' brick, being sold under the name of Lego Mindstorms EV3. The set includes sensors that detect touch, light, sound and ultrasonic waves, with several others being sold separately, including an RFID reader.[52]
Pack your bags and get ready to go on vacation! Head to the airport and check in at the terminal. Put your luggage on the conveyor belt and watch it get loaded onto the passenger airplane. Go through security and then head out the revolving doors to the loading area. Climb the stairs and get buckled in, your trip is about to start! This creative play building toy includes 6 minifigures.
Nice review, and it looks like a really nice set with a good mix of builds. The fact that I read the entire review without looking for the price speaks volumes for this in my opinion. The planes look good and I cannot see anyone from any age group who buys this not giving all three planes at least a quick test drive round the living room. One to add to my list.

If you don’t own Black Panther Pursuit or any of the sets that included Captain America, I guess it would a plus getting the both of them in this set but Super Heroes collectors tend to be completionists, so I think that scenario will be particularly rare. I guess you could always sell your spares on the secondary market, but really, who wants to do that?
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.