Just watched the first episode, and here's my review:
Positives: The direction is good, the characters are likable, and the concept is interesting. The first episode feels very realistic, with every scene coming across naturally.
Negatives: It's too long. The first episode is over 50 minutes, and there are nine more of the same length, which feels excessive for such a simple story. The show revolves around a family of four who run a private ambulance service. They face challenges in their work, competition from other ambulances, going from the scene of emergencies to hospitals to save lives, while also dealing with personal issues. But, I didn't find anything in this episode that truly hooked me. In this episode, they reached the location of two emergency calls and saved lives. I assume the other episodes will follow a similar format-going to different locations, saving people in various settings and situations. The movie that inspired this series is about as long as just two of this show's episodes, so I don't understand why they stretched it into 10 episodes, each around 50 minutes long.
The overall tone is sad and emotional, but I think they should've added a few light or comedic moments, or at least ended the first episode with a cliffhanger to make it more engaging. The episode didn't have that kind of ending. If you compare it to Netflix's Maid (also based on a real story), Maid was emotional too but had that "what will happen next" element, which is why it became one of my favorite shows. I didn't get that feeling with this show. There's also some abusive language used which wasn't needed.
Overall: Good concept and touching story, but the long episode durations are a huge downside. It's such a big negative that I'm not sure if I'll watch the rest-I'll probably skip it. I haven't watched the documentary, so I can't compare, but I might give that a try. If you're okay with hour-long episodes, liked the trailer, and are interested in the story, you might enjoy it. For me: 2.5/5.