Its too easily compromised and is hindered by an extremely laggy interface
Only Facts
Instead of me griping about the security risks and annoyances, I will state simply facts of the pros and the cons. You can decide after given the facts rather than a biased opionion from 3 years of experience.
Cons:
MetaMask requires users to trust the developers of the extension to handle their digital assets securely.
MetaMask is vulnerable to the security risks associated with browser extensions, such as phishing attacks and malware.
MetaMask stores users' private keys in the browser, which means they are vulnerable to being accessed by malicious actors if the user's computer is compromised.
MetaMask does not offer the same level of security as hardware wallets, which store users' private keys on a separate, offline device.
MetaMask does not support all cryptocurrencies and may not be suitable for users who want to store and manage a wide range of digital assets
Pros:
MetaMask is an easy-to-use browser extension that allows users to manage their Ethereum and other ERC-20 tokens directly in their browser.
MetaMask provides a secure and convenient way to access decentralized applications (dApps) on the Ethereum network.
MetaMask supports secure key recovery, allowing users to recover their wallets in the event that they lose access to their private keys.
MetaMask integrates seamlessly with popular Ethereum-based services, such as decentralized exchanges (DEXs) and non-fungible token (NFT) marketplaces.
Pros
Simple and integrates with most dapps through the browser
Cons
highly exposed to phishing attacks and authorization vulnerabilities