Legal aspects are important. 9xmovies isn't affiliated with any official sources, so their legality is questionable in many places. I should mention the potential legal issues users might face by accessing pirated content. However, I have to avoid explicitly endorsing or promoting the site.
Lastly, look at the reliability. Do users report issues with buffering or low video quality? Are there regular updates to the content library to include the latest films? Maybe there's a user forum or social media presence where people discuss the site's updates.
Another angle: how has the website responded to increased internet censorship or government actions against piracy? Maybe they've changed their domain names or moved hosting to different servers. Security measures could be another point—users might be concerned about malware or phishing through these sites.