The filling wasn't that thick, so the cake didn't stay together (I had no way how to check if the chocolate mixture is 40 or 70 degrees. There was slightly less base than expected, I could make only 2 layers (with my cake baking tin 23 cm), although it did thicken up after night in the fridge. And I've made way too much filling even though I followed the recipe precisely (might be also caused by the differences of the measurments of my and the recieps' maker's baking tray