I don't use their hosting, but I have a lot of domains with them. Anytime I've had an issue with the settings on a domain, they've been quickly resolved.

Just a few weeks ago I was getting a domain set up with Amazon SES, and one Daria P. helped interpret Amazon's docs to get it verified with them, and explained how I was using the dig command incorrectly to inspect the domain's settings. It's rare you see a support person do that at any company.

And, of course, they did ask for a support PIN.