This product is better viewed as a dessert-style protein snack, not as a meal replacement. It contains familiar bakery ingredients such as wheat flour and egg, has a chocolate cream filling, and includes milk and whey protein, which makes it different from a standard sweet snack. However, the 40 g size means it is intended for a short snack moment rather than to cover the nutritional variety of a full breakfast, lunch, or dinner.
If you use it instead of a regular dessert, its advantage is that it offers sweetness while relying on sweeteners instead of added sugar and includes protein as a meaningful part of the snack. That can be useful if you are trying to reduce ordinary sweets but still want something with a pastry-like texture and chocolate taste.
If you are genuinely hungry or replacing a meal because of a busy schedule, consider adding other foods around it, such as fruit, yoghurt, nuts, or a proper meal later in the day. A balanced diet should still include varied sources of carbohydrates, protein, fats, fibre, vitamins, and minerals; this pancake is a practical snack within that diet, not a substitute for it.