Easy to use (the interface) - can be accessed from any phone or computer, no need for dedicated hardware; easy to setup (even without technical skills); easy to manage; fast response times with all kind of requests (from simple to complex).
I really like how it's possible to set up rules to control traffic flows in real time! It has been an amazing experience working with O2 Switch so far, and I have never experienced such great support before. We are using O2 switch to help us monitor our network performance and create reports from data collected by different devices connected to our servers.