Hello!
So the GWU PhD program is fairly new but this admit group will be the second wave of admits (as in there are already PhD students at GWU).
Last year, they did do Skype interviews. Since it's a new program, the department caters (pampers?) to the PhD students quite a bit. There are only 3 students so far so it's hard to tell the "atmosphere"...work in progress I suppose. Also, just so you know, the program is very theory oriented despite their "applied" status on the AAA website.
Hope that's a little helpful!