I got the free Panda AV for six months. Every day on bootup it gives me a countdown as to how many days I have left until my free AV expires. Additionally, I get two other nag screens that popup during the day.
It is very good AV, but I think I will head back to Kaspersky or Eset soon and get their paid version.
Based on my experience with the free Panda AV, I think I will give this internet security suite a pass.