Choosing between Centralized Exchanges (CEX) and Decentralized Exchanges (DEX) is an important factor for any trader.

Centralized exchanges are characterized by ease of use, high liquidity, support for many currencies, and clear regulations along with additional services, which is an important point in your evaluation. However, the risks are that assets may be frozen if regulatory issues or hacks occur.

On the other hand, decentralized exchanges give you complete control over your private keys and relatively higher security since there are no central entities controlling you, but their liquidity is lower and the user experience requires a better understanding of blockchain and dealing with smart wallets. Gas fees are fundamental considerations that you need to keep in mind.

Personally, I prefer CEX for quick trades when it is important to achieve instant execution and high liquidity, especially with large amounts or low-volume currencies. However, if I need privacy and complete control over my funds or if I like to try new projects away from regulatory constraints, I find DEX to be an excellent solution.

When choosing between the two, I look at liquidity size, technical and regulatory security, fees, and ease of deposit and withdrawal. Additionally, the platform's reputation, technical support, interface usability, and the reputation of the protocols I work with.

If you are new to decentralized exchanges, it is advisable to start with small amounts and learn how to use decentralized wallets properly, ensure you understand the fees before any transaction, and keep your keys safely offline.