I just made this and it was really moist. I used self-raising flour instead of plain with bicarb and baking powder and mine is a bit crumbly but that may be because it is still warm. I couldn't resist having a piece right out of the oven.
My courgettes/zucchini didn't quite disappear but that might be because I used the larger of my two graters - the one I use for apple and carrot. Next time I will use the smaller one that I normally keep for nutmeg and parmesan. I have to admit I think you would only know what it was if you knew what it was.
It is not obvious that there is a vegetable in there and it really is a delicious cake. I think it would also be nice with ice-cream.
I also got distracted by someone at the gate and forgot to add the nuts but it is nice just with the chocolate chips.
Thanks for sharing the link to the recipe.