I went on the Saturday, and thought it was fun, but the static park was dull, there was too much filler in the air, there weren't nearly enough toilets or food outlets, and I don't think the Service Station concept worked- it was too concentrated and the basic amenities should be absolutely everywhere when there's going to be many thousands of people in attendance.
Some great displays, but I found the RAF Typhoon a bit underwhelming, and I just can't understand why the Wingwalkers are still a 'thing' (I suspect it's because the girls all look a bit 'vaguely upmarket page 3' and so therefore are good for ground based advertising and sponsorship, but in the air- boring as hell and who cares what they look like?!). So, so boring- if it was a TV show, the Wingwalkers section would be when you'd go to the toilet or put the kettle on.