The hostel is located in an awesome and lively neighborhood, just a few steps from Borough Market and the Thames warfs where you can find many restaurants and pubs. It's also very easy to go to many places in London by foot, which is very pleasant. If you arrive in London from Liverpool Street Station, you only have to walk for 30 min. to get to St Christophers Inn.
There's a pub on the first floor with free WiFi, places to where you can work, parties all the week. You can also find a cash withdrawal and all the commodities near.
My regret is that there a lack of equipment to store and cook food (only one little fridge and microwave in the chill out room) and being 10 in the same room has it flaws. The street is quite noisy too.
But, if you don't mind that and are just looking for a cheap place with a great situation in London, it's a good option!