I am not certain I understand the first question. Do you mean do they seat you and where would they seat you? Or do you mean, when you get there, will you have to wait and while waiting where would you sit?
Basically, when you arrive at 1900 PF, you give your name to the hosts. There is a small section of bench seating across from there for those waiting, but would only hold about 10-12 people at most. This leaves many to stand. When they call your name, they have you take a picture in front of a mural and then they will seat you at your table. I am not certain which area you would be sat in as that probably depends on your party's numbers and what is available when you are sat.
As for the food, I found the breakfast to be good and fresh. I really liked the made to order omletes. The restaurant was very clean when I was there.
To get to DHS from GF via WDW transportation, it would be by bus.