I can't say enough good things about the service we received from DU *last* year for our 7-day Western Magic cruise.
This year, I wrote to our previous TA at DU asking how to transfer this year's reservation (which we made onboard last year) over to DU, and received a "form email" letter back saying that she was no longer at DU and that I would receive a reply from a current DU representative soon.
No such reply was ever forthcoming, and we hit the "balance due date". Although we could have attempted a second contact with DU, given what I have read on this list recently and my own experience, we have decided to stick with Disney. I hope our unfortunate DU experience this year was just a blip in the DU radarscreen: it would be a real shame to see an organization which used to provide such first-class service sully their reputation with poor response.