The food is good and it is very busy so it clearly is popular, but does that make it excellent - I don't think so.
It all depends what you want. After all, it is quite small (7 booths, 4 or so group/communal tables and bar seating) and the decor is nothing to write home about. So, given the bustling, jostling atmosphere this is not a restaurant at which to dine out in any formal sense - it is more of a local cafe where it is the food that counts most.
And, the food is good. Actually, I started with a beef salad that was probably among the best of its kind that I have ever had - beautifully grilled beef with tangy accompaniments. And the red duck curry that I finished with was quite good, though marginally over-cooked and with too much sweetness in the curry sauce.
The main problem was that the Tom Kar Ghai soup that I ordered without mushrooms came with them swimming in the bowl. So, was this the fault of the server or the kitchen? One will never know.
So, given the soup order mess-up and the only quite-good duck, I could never rate this as an excellent cafe and it certainly is not an excellent restaurant in the dining-out sense. But it is definitely better than average and merits a repeat visit, though we shall be more careful to insist on double checking the order is correctly taken down and communicated.