One thing although a minor thing I find a bit strange is the logic looking at the order of the menu items in the YouControl menu used to interact with GSX.
The first option is deboard if my memory serves which to me feels very strange...how likely would you IRL as a pilot come to the a/c you're assigned to fly and find it already fully loaded and then start by deboarding?!
More likely the logical order and as IRL would be you come to an empty a/c and then start by asking for fuel, catering etc before letting the PAX onto the a/c and last thing after landing at your destination and having parked at the gate you would deboard the PAX.
Again, not a big deal but just feels a bit odd with the current order of menu items.