Their CS is practically non existing. They work flawlessly once you get it all working, but it can be a real pain in the ass if you have some kind of a problem that needs a real persons assistance. Why do you need to talk to them?
PS: I've used them and I still use them, they're reliable, if that's what you're looking for. They do reply to e-mails, but usually it takes them more than 48 hours.