Great premise and majority of Series 1 gripping with character and plot working grippingly hand-in-hand and if ended with that series it would have been great. But seen some of Series 2 and definitely getting the vibe of something being milked too much and so not convincing me or being as original and enjoyable. In Series 1, key element was that they were amateurs in above their head (and yet sort of OK), whereas latterly becoming too professional. Disappointing .