The point of the decentralized exchanges

The question is whether the decentralized exchange is lame or profitable? I got a good review on this matter Decentralized Exchanges - Pros and Cons Analysis. Actually, I think that decetrilized exchanges are getting popular and I don’t know a good reason no to use them. But, maybe I missed something, is there other opinions or ideas?

Decentralized exchanges are very promising and promote the essence of cryptos.