I have tried out several online backup solutions for reviews, research, and for personal use. The only surprise I found in the setup was the manual requirement to set up Skype first. Cucku uses Skype to send your backup data to your friend. Cucku can be used without Skype, but only to back up and restore locally. Well, the Skype install is easy, I suppose. After that, I discovered that the Cucku install was simple as well. The online registration is about as painless as you could hope for. .NET 2.0 is required, and Cucku will install it if needed.
The email confirming your sign up for Cucku is full of information, including links to become a fan on Facebook, following on Twitter, and more. Plenty of links for help online, in forums, and so forth.
Running and using Cucku is definitely easy.