Delivered we get a cardboard box the size of a DVD case, in which, however, no disk, but the Product Key is located, which can be used five times. The protection applies to all common things like Windows, Mac, Android (smartphone & tablet), Windows Phone, iPhone and iPad.
Installation is - depending on the device - from fast to slow, but the result is convincing. On all devices is to start the software, the system scans for existing dangers deleted wholesome and then the wall builds for upcoming dangers.
Offline and online I could find no decelerations. It seems as if it would be quite loose flaky to work in the background and do not interfere further. Should risks arise from the software is sure that it is useless and absolutely harmful to the system, they are deleted - with a short message. In "medium" risks, such as the opening of an unknown, possibly harmful internet site, is a though not recommended, but you can enter the site yet. Within the trial period, so far I was very surprised at how much my equipment "popular" and tried by threats of being attacked - or they would probably explode.
Conclusion:
We had a looooong time ago times a F-Secure subscription at Telekom, in which we had paid monthly. Even then, we were very pleased with the performance of the whole, but to this day it seems probably have become much better and more stable, especially when it comes to the complete protection on the Internet.