Great stay in Novotel Amsterdam City. This is more like a business hotel - high speed and stable wifi, generally clean, spacious, with in-room Nespresso coffee machine and shower amenities (using Ritual products!). Would be great if room slippers are included. Hotel is near to the convention centre, 15 minutes drive from airport and walking distance to the tram and metro.
On the first or second day of our stay, realised the housekeeping was "half done" - the tablecloth on our desk, bed not done and bathroom not cleaned. Was quite worrying at first - we took it as a one-off mistake and didn't pursue. After which we are heartened by the prompt and efficient housekeeping :)