Yeah, this feels a bit like the "Hard Travelling Heroes"-era for Green Lantern and Green Arrow. Mixed with a little bit of Hal's time as a travelling toy salesman or trucker in the 80s.
And John feels a bit more cocky, like his pre-accidentally destroying Xanshi in Cosmic Odyssey days.
I'm not sure if they're going to have Hal be possessed by Parallax the whole time, or trying to "imprison" the entity inside of himself. Thus the grey hair, and why he seems to be hesitating to actually use the ring. That would be a easy "Jekyll/Hyde" story to build up for the finale. But, I'm just not sure if that's what they're planning.
The physical Green Lantern suit in the closet is just weird. They're probably doing their own thing, and it makes some sense to wear backup clothes in space. But, it does feel a little weird, and maybe a little too "grounded". But, that kind of goes for the whole show.
It might be a fine drama. But, it does feel like they tried to spare EVERY expense. It's not what most people would think about when they think about Green Lantern, anymore. But, I get not wanting to go fully cosmic on a brand that's been seen as a little "toxic" ever since the movie flopped. And it might be fine for a TV show. We'll see.