Catchy from the 1st episode (humor, action, explosive CL interactions).The interest remains until half of the series.

But then, we start to see too many flaws. I completely agree with Zogitt's comment :

- narration too slow and detailed on useless secondary aspects. The storyline has simultaneously Office aspects, corporate rivalries, thriller, suspense, action and too few romantic moments. What a mess !!
There is little construction context, but varied first aid situations. We follow in detail the romance of too many couples with a lot of useless scenes.

- Not enough focus on the CL. The interactions between the OTP are too rare. They're REALLY cute together.
No kiss or skinship in this drama, supposedly for health reasons??? I can not believe ! How did they do in the other series???

=> Big flat from half of the series. Even if the CL is very cute, even if Johnny Huang is really really handsome and talented, it's hard to rate this drama well...

The screenwriter could do better!
The director especially, had a cast with such potential, that he could have made a captivating drama...

It's still a good drama, nothing more.