Valeroa does not require an Internet connection, places no restrictions on the number of daily installations or hardware changes, and does not continuously perform read/write operations on your hard drive.
As for its protection period, the team behind it had this to say:
“Valeroa Anti-Tamper is extremely difficult to crack before and closely after the game release date. The protection becomes a lot easier to crack after a predefined period. We have no problem with organised pirate groups or individuals who crack Valeroa once the protection is weakened. We definitely don’t prosecute people who just play cracked games.”