Get a taste for the high life at DoubleTree by Hilton London-Islington, which comes with its very own rooftop bar. The SkyLounge even, optimistically, has a barberque. For colder climes, dine under the atrium skylight in the lobby bar.
Location-wise, you're just a tube ride away from the pubs and bars of Camden, and The British Library and Design Centre are close by. St. Pancras Station Eurostar Terminal and Kings Cross Railway Stations are a 5-minute bus or taxi ride away, so you can stop panicing about missing your train home.
There is 24-hour reception, Wi-Fi and public parking is available close to the hotel.