Well for positive improvements I would list:
Much improved Schengen-area lounge at AMS - with better seating, better range of drinks, better range of snacks (which change throughout the day), much better acoustic isolation of the TV (something missing from so many other lounges, sadly), and better availability of electricity sockets for laptops, etc. I remain really impressed by this lounge.
For negative things I would add:
Website has deteriorated and is now even harder to make a booking, using either Safari or Firefox. Yes, hard to actually give them money! I usually resort to Expedia now.
Techno