Got mine today. There's good, and there's bad.
When I first ran it, it made a horrible whining sound. I called the Dyson help line, which is helpfully plastered to the side of the thing, and the guy had me unhook things and flip things over and... nada. After a measly few minutes of "troubleshooting" he told me to take it to an authorized repair place. I rolled my eyes and bade him goodbye, and just took the damned thing apart. I couldn't find anything wrong with it, but when I put it back together it worked without any heinous whining sound.
Well, "worked" might be an overstatement. I couldn't get any suction on the main vacuum part. The brush wasn't spinning, there was zero pickup on it. The hose and everything was fine, and I finally figured out that there was supposed to be a cap on the wand that Was Not There. So, I called them back, happened to get the same guy (who was totally nonplussed by the fact that it was no longer making the annoying whining sound...), and he said he'd pop one in the mail. ribs. In the meantime, I slapped some duct tape on the end of the thing and went on with it. Yeah, it's a PITA to put attachments on, but it's better than nothing.
Speaking of attachments, I got all of them... except one of them was for some other Dyson. I couldn't get it to attach anywhere. Too small to go inside the hose, too large to go on the tube. So I called Dyson a *third* time, and told her it was the wrong attachment. She told me there was only one of them, that all the different models got the same one. So I said, well, if they're all the same, and you *sell* me a new one, then it'll be the same as the one I've already got, and it Still Won't Fit. She took my point, and after realizing that she was wrong, and that they don't all get identical attachments (she said the one I have is likely supposed to go with the DC18), so she's sending me that for free as well.
So, yeah, it's not perfect. But it's a refurb (rox0rz!), and it was $200 off, and it *works*, it just needs a little coaxing. I will give Dyson credit, though, on two points. One, there's no voicemail hell to get through before you get to a person. The first time I called, it rang no more than five times, the second time, less than three times. The third time it might of been ten or so, but a real person answered the phone. No pressing one, no entering account number, do not pass go and do not collect two hundred dollars.
AND, the people are friendly. Yeah, the first call yielded me very little except a deeper understanding of how to take all the tubing apart, and the third call I had to verbally wrassle a little with the woman to make my point, but no one was rude and no one was dismissive. Which, in customer service these days is a coup.
All in all, I'm happy with my purchase. It's not perfect but still. I'll be happier with it in seven to ten business days, but until then I'll manage.