From a purely passenger standpoint that sounds promising.
To me it feels like no managerial level team have tried to travel through STN.
Why, for example, are there no visible departure boards at the entrance to the people movers/satellites?
The journey through duty free & retail is long and winding, but would be less irritating if obstacles like overcrowded benches weren’t in the narrow corridors. It’s just really difficult to circulate.
The toilets are quite far apart. I think one set by Pret and one just after security.
The satellites are quite shabby by now, especially 1 & 2 and have poor provision of refreshments.
The Escape lounge is small, has small windows and almost sub-terranian.
Most of these things arent hugely difficult to solve, hopefully a mezzanine level and a reconfiguration could improve many of these problems.