It is the most current version of the software, it is 100% safe and legal, and it allows you to learn the modern interface used in shops today. The only limitation is that it does not "post" G-code (you can't run the files on a real machine). Conclusion
Mastercam is a heavy-duty CAD/CAM tool. Cracked versions often crash during complex toolpath calculations, which can lead to wasted time or even physical damage to CNC machines if the G-code is corrupted.
Which of these would you prefer?
Instead of risking your hardware and data with a torrent, Mastercam offers official, safe ways to learn and practice: Mastercam Learning Edition
Instead of opting for cracked software, consider the following alternatives: