Let's not get into a pissin' match but they are not the same developer, resemblance being the "76" label. I tried it, it wasn't the same, it wasn't as good (much lower contrast to D76 1:1) and I abandoned it. Not to say others can't make it work for their work, but not my cuppa tea.
I would advise all youngstas, no matter what age, do serious work with D76 to get an understanding of what B&W developing can do. That said, I don't use it anymore, I use Rodinal, W2D2+, and Pyrocat as my standard developers (Diafine and 777 when I want to get fancy). Why? It doesn't do it for my vision. And that's the bottom line.
tim in san jose