I just finished it and I loved it! All the girls are amazing and very interesting.
It's hard to tell which of them i like the most. But definitely... Exit is the cutest, most straightforward and laid back. Robyn is a bit shy, a bit clumsy and the most natural. Channety is the most well endowed, pink and has this "robitic" vibe. Maya is the most professional, serious and i like her mad-scientist style.