I watched the first episode last night. Or must have been after midnight I suppose given the release date is today.
Seems it will only be one new episode each week.
I have to say I thought it quite good. A better standard than so many of the 9pm slot dross.
And given that I couldn't remember anything of the first series felt it didn't detract from this episode.
Although I am sure if you are good at remember characters and their names it will give more depth to the plot as it seems some are going to or already have re-appeared.