I don't use it, I run my own private VPN server hosted within my DDWRT router. It's not a top notch solution, very basic solution, but some peace of mind for me on the cheap.
SecureLine has much more value-add in above the basic encrypted VPN. Virus scanning on the server side is meh, but webphishing url checking, and Ad serving blocking is intriguing.
The app delivers a Profile Certificate, then negotiates the OS establishing a VPN link. All your apps, and browsing from native Safari go through their servers for the scanning, protection, and blocking ad servers. It's a really clever service if you spend a lot of time looking at financial records and sensitive data on public hotspots.
Wow, 3 people in a row, responded without realizing the OP was asking about a secure networking solution.