Fantastic! The staff are immensely friendly and cheerful, the food is unexpectedly cheap. The all-vegetarian menu, which is not long, is imaginative, and is changed every day. There is something interesting about each dish. What makes this particularly special is that, if you come on your own at busy periods, you will probably have to share a table with someone else who may appreciate some company too. Without question my favourite London restaurant! It's always full of tourists, because it does feature very highly in continental guidebooks.
Don't not be put off by the fact that the queue goes all the way up the stairwell and into the street - it is popular for good reason - but the queue moves fast. Don't be tempted to reserve a seat first, as other customers always give up their seats if they see you have nowhere to sit once you have collected your food.
They serve a unique dessert known as "scrunch" - yummy! - you can collect it from the takeway counter rather than queueing again.