After watching the second episode it feels like this show (despite it's big concept) is basically just another Syfy show using the template of "strange things happen, but in a contemporary setting to save money" and not that far from Warehouse 13, Alphas, et al.
Sure there are more aliens walking around. But they are walking around in basically Earth now just in a junkyard or shantytown. If it wasn't for the occasional FX vista you wouldn't even know it was the future. Vehicles, buildings, weapons, clothing ... mostly everyday items.
I want to see vast alien cities, spaceships and places that look like other worlds. Not around the corner at the disused factory. You can get that on Falling Skies. Based on what we've seen the aliens only came to Earth to make some more mountains and so they can live in shacks with everyone else.