I remember using Dtube when it first came out and was kind of buggy so I stopped using it for awhile. I've noticed a big increase in people posting to it now so maybe I need to get back on that bandwagon.
I don't particularly like youtube for obvious reasons (censorship) but I will admit I've used it as an alternative when Dtube failed me at times. it's good to see that it's improving and turning into a viable and more heavily used application.