I really enjoyed it, very fast paced and i love the concept of our protagonists being trapped in a time loop. It is very well executed and it doesn't get draggy or boring.
You will be looking forward to each time they wake up to see what ideas they come up wit to come out of the time loop. It is very thrilling to watch.
The acting is awesome and i love how well written the characters are. Very diverse and unique. Their backstories are very emotional and will pull your heartstrings, you will feel attached with all the passengers riding the bus.
The female lead is strong willed calm and composed whilst the make lead is more hot headed, emotional and impulsive. I love how they didn't care about typical gender roles stereotypes while writing them.
Romance is just organic and even though is not a focus in the story is sutil but nice to watch and the chemistry is great as well. They work amazing as a team too.
My only problem with the drama is that we never get to know why the female lead is caught into the time loops in the first place. She has a brief relationship in the past with the driver of the bus but it is nothing too deep so I would have expected some WOW factor about this, I guess something more personal connected to her, that's the only thing that prevented me from giving this drama a 10.
Other than that and overall a great amazing series, with great casting, awesome character development, strong story, no holes and great ending too. Watch it, you won't regret it.