Interesting. The voiceover at the beginning was reminiscent of a PT character.
Some of the shots look like a significant departure from the cinematography of the PT and the OT. Especially the dynamic camera moves with the Millenium Falcon.
The glimpse of that Dark Sider was intriguing. And that lightsaber was new and different in a cool way. But part of me thinks that it might be getting gimmicky with all of these different dark side lightsabers.
The new X-Wings looked pretty awesome skimming the water's surface like that. It looks like the pilots are sporting a new kind of helmet, too.
As for the actors? Clearly, John Boyega is in that first shot. Daisy Ridley appears to be on that new speeder. And I think that was Oscar Isaac as the X-Wing pilot.