I was there again the other day and it was delicious.
The problem with FM Mangal is it has become a benchmark of taste/value by which I judge all others. Recently returned to the Angel and Gypsies where me and the missus had an exceptional meal a few years back if a little pricey. This time the portions were meagre , the food just average and the cost extortionate (70 quid for a few dishes and a glass of wine each). They are relying on their reputation now to max out the return from their customers and has the feel of a business maxing return on investment rather than indulging in a love of food and sharing it with the world. We won't be going back. Nothing (and we eat out a lot) beats the Mangal bang for your buck equation. It would get boring but we love to take friends there and treat them and see the love. The owner who is a Kurd BTW always greets us like returning friends.