One question, an infinite number of possible answers: what makes a customer leave a restaurant satisfied? To try to answer this, we sought the views of two experts: a professional from the luxury hospitality sector and a restaurateur who juggles several different segments on a daily basis. Their observations converge on a single word: the promise. The question remains as to whether it holds up once put to the test of reality. We therefore put three Luxembourg establishments to the test, each representing a different category: Charles Sandwiches for fast food, Brasserie Mansfeld for brasserie-style dining, and Ryodo for fine dining. We applied the same assessment criteria to all three – cleanliness, speed, quality of the food, atmosphere, service and consistency – to check whether the promised experience matched what we actually encountered.
Consistency: the cornerstone of the experience
For Stéphanie Raimbault, general manager at Villa Pétrusse, the key lies in one word: consistency. A graduate of the École hôtelière de Lausanne, who worked at the Four Seasons in Geneva, London and Los Angeles before taking over as manager of Villa Pétrusse, she makes this consistency the guiding principle of her approach to the customer experience. “In a fast-food restaurant, we know exactly what to expect. Customers value speed of service, hygiene and price.” In fine dining, the promise is quite different. The guest comes seeking an emotional experience, born of a subtly orchestrated whole: the quality of the dish, but also the choice of crockery, cutlery, lighting, music and the quality of the human interaction that ties everything else together. “When everything seems obvious, it’s because it’s been perfectly mastered.”
It’s always a question of expectations. When the promise made to the customer is perfectly in line with their perception, the experience is a success.
Somewhere in between, the brasserie strikes a balance: comforting, straightforward cuisine, yet underpinned by a genuine commitment to quality. “The service here is often more direct, sometimes even more friendly. Above all, we’re looking for a sense of warmth and spontaneity.” In any case, she insists, the first impression is always a human one. “A glance, a posture, a tone of voice – it all comes down to those first few seconds.”
Consistency: the toughest discipline in the profession
Alexandre De Toffol runs the Black Sheep group, together with his brother Erik De Toffol; the group comprises six restaurants in Luxembourg, ranging from the gourmet burger joint Munchies to the more sophisticated Onda. In short, he juggles radically different expectations every day. His belief is that consistency is the toughest discipline in the business. “Just because we served a customer well one day doesn’t mean we’re guaranteed their next visit.” Every visit is a fresh start.
The customer should leave with a smile on their face, from start to finish. It’s very difficult.
In its restaurants, three pillars are non-negotiable: the quality of the food, the service and the ambience (architecture, music, atmosphere). “It’s all part of the package.” At Munchies, everything is homemade: Luxembourgish meat, hand-cut chips made from potatoes supplied by a local farmer. “We didn’t want to run a fast-food outlet, but rather a gourmet burger joint.” In more upmarket restaurants, there’s zero tolerance for mistakes: “People won’t forgive a single slip-up. One little thing, and the customer isn’t happy.” His ideal? To be able to chat to every customer. With a group of six restaurants, that’s impossible, and he knows it. “You can’t get it right all the time. It’s extremely difficult.”
Our rating system applied to three restaurants
At Charles Sandwiches, the sticky, fast-food-style floor does nothing to detract from the spirit of the place – a relative standard of cleanliness, embraced as such. The service, for its part, is speedy, in keeping with what you’d expect from this sort of place. The food is decent: rich, comforting comfort food. The atmosphere relies on simple, friendly décor, with virtually no background music. As for service, there’s no welcome at the door; you order at your table and pay at the counter. It’s all very consistent: no pretensions, no surprises. Verdict: it delivers on its promise, provided you don’t expect anything else.
At Brasserie Mansfeld, the cleanliness is impeccable, including on the terrace, where a few fallen leaves simply serve as a reminder of the venue’s natural setting. Service is within the norm, as even with simple dishes, you should allow between 1½ and 2 hours for a full meal. On the food front, the promise is exceeded, driven by a “gourmet’s eye, brasserie spirit”, as chef Mathieu Morvan puts it. The atmosphere benefits from a leafy terrace and music in the style of Brasserie Beaulieu, whilst the service remains friendly and professional, without any fuss. Everything is perfectly cohesive, from the Villeroy & Boch ‘Vieux Luxembourg’ tableware to the carefully sourced ingredients, right through to a well-curated menu. Verdict: the promise is kept – and even exceeded.
At Ryodo, cleanliness is clinical right down to the toilets, where every detail is carefully attended to, from dental floss to sanitary towels. The quality of the food is considered exceptional: the Japanese cuisine, executed with great precision and featuring a personal twist, is based on ingredients of unrivalled quality, starting with the tuna sashimi, which speaks for itself. The atmosphere is perfectly controlled, enhanced by an intimate dining room, light colours and a hushed silence. The service is star-worthy in the truest sense of the word, with a sommelier, a high ratio of waiters to guests, neatly folded napkins, glasses that are never empty and quintessentially Japanese politeness. Consistency is absolute, from starter to dessert, from the dining room right through to the toilets. Verdict: the gastronomic promise is delivered, down to the last detail.
This article was written for the Extra Customer Experience supplement of Paperjam magazine’s July 2026 issue, published on 17 June. The content is produced exclusively for Extra. It is published on the website to contribute to Paperjam’s comprehensive archives. Click on this link to subscribe to the magazine.
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