Da Long Yi is known for its spicy flavor like Da Hu hot pot, Da Hu is Chongqing's heavy oil and spicy, while Da Long Yi is Chengdu's refreshing and spicy taste.

In order to differentiate the taste, Da Longyi has advertised its goal of making the hottest hot pot since its establishment, and has also promoted the spiciness in the follow-up development. In the eyes of many hot pot lovers, "spicy" is indeed the most distinctive feature of Dalongyi, just like when mentioning Haidilao, people will first think of "service". In addition to Hanyuan peppercorns, Pixian bean paste and more than 20 kinds of spices in the bottom of the red soup pot, three different peppers are also added: Henan's new generation is red and bright, which is used to improve color; Guizhou Mantian Star Pepper is fragrant and is used for fragrance; Indian devil pepper has a strong spicy flavor and is used to make it spicy. The Xi'an store has three levels of spiciness: slightly spicy, medium spicy and original, and the spiciness of the slightly spicy is basically the same as that of other stores. The original flavor belongs to the extra spicy level, and the spicinessness is as domineering as the taste of the Chengdu head office, which is suitable for gluttons who are not spicy or happy.

The taste of the best nine-foot goose intestine is crisp and tender, and many diners mistakenly think that nine feet is the length of the goose intestine when they first see the name of this dish, but in fact, nine feet is actually a nine-foot town under the jurisdiction of Pengzhou City, Sichuan. In recent years, with the continuous expansion of Chengdu hot pot, the goose intestines are also known to more and more foreign diners. Tongwei fish skin is a specialty dish of Da Long Yi, and only Da Long Yi is available in Xi'an hot pot restaurants. Tongwei fish skin is made from Hainan crucian carp, the raw product is large and neat, the texture is soft, smooth and smooth after scalding, and there is no fishy smell.

In 2016, a Dalongyi branch in Wenzhou was exposed to using old oil, and Dalongyi has since strengthened the supervision of franchisees. The company launched the flight inspection mechanism, inspected the franchise stores from time to time within a year, and changed the hot pot base from oil packaging to oil mixing, and after the pot bottom is used, the waste oil recycling company approved by local government departments will process the hot pot oil, which will be more guaranteed than before.

Several stores in Dalongyi have a strong Bashu atmosphere, with red lanterns, wooden tables and chairs, hollow screens, and Sichuan opera masks well matched, and the whole store gives people a bright and spacious appearance. However, the exhaust of the store is not smooth enough, and there will be an obvious feeling of suffocation during the meal, and there will be a large smell on the body after eating. The service staff has a cold attitude and lacks a sense of active service, and the apron needs to be requested by the customer himself, and the response speed will be greatly reduced during peak hours.