Finished it. Some thoughts, no major spoilers, but talking about who is/isn't in the series, so I'm gonna spoiler anyway...
An interesting problem is that while JJ is an amazing character, this show suffers without both Luke and Kilgrave. The use of Kilgrave is clever and crucially isn't overused (and I love the nasty, lingering idea that 'he's always there' inside her that's left dangling), but it perhaps underlines that they shouldn't have killed him last year - or they needed to find a foil as good, which the villain - if you can call it that - isn't this year. Luke is better in JJ than he is in his own show, and his influence is definitely missed, though I'm guessing if they go to season 3 they're going to have to have him there (or bring JJ into LC season 3). Trish is the only other character who really shines, but they sure made some interesting choices there, geez.