DO support has gone majorly downhill (I have a comment about this that goes into it) in the last year or two with more issues cropping up here and there on hypervisors that go unattended for absolutely no reason. I still haven't found a good alternative but I'm looking.
Second that. I was emailing back and forth all last week due to some tricky bind-related rDNS issues on an ipv6 issued 64 block.
While I do wish they built out features faster (their new beta console which seems to have actually dropped features, and things like CertBot plugins for LetsEncrypt wildcard DNS updates), the support is fantastic.
They are always are polite and ready to help, even if the issue turned out to be a misconfiguration problem on my end.
