The installation is quick and easy. For Android devices you have to first time Download the appropriate app.
There are up to 3 devices possible. I like the user interface very well. It is offered a complete package. Whether safe Internet browsing, e-mail protection against malware, banking protection, backup, password manager, data vault, parental control and much more.
The PC is not running slow, although in the background Kaspersky is doing its job. So far nothing harmful was found on my PC, so I feel safe protected with Kaspersky.