Agreed zero wow factor.
No free space, not enough seating areas (outside of food outlets). Lots of picnic benches - is it a garden centre?
Given that T2 will stretch to T3 - it's a long way, how do you get from one end to the other in an unobstructed way?
It lacks any relevance to aviation, where are the gate areas ?
Sure retail is important as are food outlets, but let's not lose focus- it's an airport. Great airports have these, but also have spades of open free space, tall ceilings even outdoor garden areas where you can get fresh air.
Underwhelming all round.