I'm on episode 6 myself, been up all night watching it, and watched the clock click by until Netflix put it up after the clock struck 12.
Episode 1 - I believe it's going to get rave reviews, I'm talking about Breaking Bad like praise, perhaps even higher. Prediction: Most critics will claim it to be one of the best hour long episodes of TV in recent history. It's that good.
I was completely surprised by what happened and the direction they chose, and the actors and staff have kept a very good secret until today, which I salute, as this sort of thing almost always leaks out and ruins the surprise. I'm beyond impressed, Netflix has proven that it can run with the big dogs, and is capable of producing powerhouse shows. I think in the coming years we'll see a lot more from them, and quality like this.
Highly recommend to everyone. If I didn't have an appointment at 9, I'd be close to finished, it's that good and addicting.