I am glad that you had good experiences.
On the other hand, other tasters have been disappointed. My imprecise, non-statistical straw-poll is running at 3:2 against Cafe Spice Namaste (City). There is a branch in Battersea with even lower ratings.
Cafe Spice Namaste has been in UK over 15 years and over 9 years in London. That's actually not very long on the UK Curry timescale
. 'Veeraswamy' in Swallow Street, London, is Britain's oldest surviving Indian restaurant and still on the same site in Victory House (1926).
Remember, everybody, that our personal experiences may vary. Ratings, like stocks, may go up as well as down. That is the adventure we call Life!