User experience is another factor. If the tool is a simple executable, it might lack documentation or support. Users might find it difficult to troubleshoot issues, especially if it's not well-maintained. The review should mention that and suggest that users look for official alternatives.
Also, legal considerations are crucial. Using keygens can be illegal if the software requires purchase. The review should note that using unapproved license generators is against the law and could result in legal action. It's important to advise users to support developers and use legitimate methods.
Functionality-wise, if it's a license generator, it might not be reliable. Legitimate software requires licenses to be generated through proper channels provided by the software vendor. Third-party tools might create fake licenses that don't work or get the user in trouble if discovered. I should highlight the potential issues with using such a tool, like activation problems or invalid keys.