Firstly, the acting is phenomenal. It's not often I see a programme where every character is acted superbly, we feel every ounce of their emotions and despite the short 5 part series, we actually develop feelings for each character.
The series is exciting, gripping and full of twists, yet sometimes I found the show infuriating. There are times you see Kaya treated rather oddly by Dan and Emily - I understand it could be possible for Emily to be so pedantic and over the top, however I did find it weird for Dan to be so aggressive towards Kaya. There were times I felt a simple conversation would have sorted the predicament so I did occasionally feel the script was unrealistic.
Overall however I thoroughly enjoyed the show - the first four episodes were superb yet I did find the last episode a bit slow and tedious, however the first four episodes more than made up for that.
If you're debating what to watch, then I'd really recommend this programme. You'll enjoy it.