Buffet on weekdays is awesome.
Foods are fresh, tasty, and the atmosphere great.
Place is easy-going and friendly: vegetarian options are plentiful and decadent.
As for a la carte, the portions are not 'small'. They are good sized, and those who love Indian dining, know that 'for two' means usually perhaps, say, 3 different kinds of appetizers and 3-4 main courses-- idea is to taste, share and enjoy.
Coriander makes that very easy.
It reminds me of some of the better dining experiences I've had in London.