This restaurant is a hidden gem in the heart of Madrid, offering an authentic Argentine dining experience. The quality of the food is top-notch, with generous portions of juicy grilled steaks, cooked to perfection in the traditional Argentine style. The atmosphere is trendy and quiet, making it an ideal spot for a romantic dinner or a night out with friends. The staff is friendly and welcoming, with excellent service that is always attentive and knowledgeable.The prices are reasonable, especially considering the high quality of the food and the generous portion sizes. The restaurant is LGBTQ+ friendly and has a safe and welcoming space for everyone. The amenities are top-notch, with free Wi-Fi, a fully equipped restroom, and a cozy outdoor seating area. The menu is diverse and offers a range of options, from steaks and seafood to pasta and vegetarian dishes.The restaurant is also pet-friendly, allowing dogs inside, and has a paid parking lot nearby. The staff is accommodating and will go out of their way to make sure you have a great dining experience. They are also knowledgeable about the menu and can recommend dishes based on your preferences.However, some of the steaks can be a bit too rare or overcooked, and the sides can be a bit greasy. But overall, this restaurant is a must-visit for anyone looking for a unique and delicious dining experience in Madrid. The only downside is that the restaurant can get a bit crowded, especially on weekends, so it's a good idea to make a reservation in advance.The restaurant is open from 13:00 to 24:00 from Monday to Friday, and from 00:00 to 01:00 and 13:00 to 24:00 on Saturday and Sunday. You can contact them by phone at +34687735271 or visit their website at https://lostgrill.eatbu.com/.