I followed this series from the beginning, mostly because I love flying, and flying a helicopter is my dream. But I also liked the series because of its idea and actors. Sometimes the scenes were rather rough - I don't think it'd be a good idea in the real life to shoot first and ask questions later - but it's also nice every now and then just to look at series like this, action, I mean. I love the actors in this, they're more personal than in some American made series. And it's fun to watch all the famous places in Berlin. :)
All in all, this is probably best series I've seen in a while, it has got beautiful helicopter, charming pilot and several jokes I laughed for hours.