Angel is the area of Islington located around the Angel tube station. The later is on the Northern line and is likely to be on the Chelsea-Hackney line that will be running from south-west London to north-east London after 2018. It is a great places to live as an easy reach from everything, with King's Cross Saint Pancras station being just a tube station away. People living in Islington often prefer the bus as you can literally reach most central places through a short bus ride.
Angel has lots to offer when it comes to accommodation around the Islington high street, liverpool high street or by the Regent's canal. You will find lovely terraced houses, victorian houses (often broken down into flats) and 2 to 3 storey buildings. Many houses in Angel are listed buildings and are therefore very charming. It is a popular area and there is generally a high demand for flats and houses to let. As such, rent in Angel are fairly high. If you cannot afford it and are ready to walk 15 minutes to reach the station, you might want to get away from the main roads to find a cheaper rent.