The team at Qunan are always professional & friendly when dealing with them or any of their clients. I have never had issues working with them nor do i feel like they try anything untoward ( which is important). Their pricing structure makes it easy to budget for your needs. No real dislikes - just that if you're looking at other providers out there then be sure to shop around and compare prices as well as service quality before committing yourself. We use Quann's managed antivirus solution for our network devices. It works great! Nothing really but we haven't come across many problems either. They've helped us manage the risk associated with all of our systems.