My Secret Romance is your standard romantic comedy compressed into a shorter run-time. Despite being a breezy watch, it does fall flat on several fronts.
The premise is fairly common place: girl and boy meet, misunderstand reunite as misunderstandings pile up, fall in love with common problems. Check, check and check. There's your standard cold-hearted on the outside, warm on the inside chaebol male lead. The hardworking, empathetic and poor female lead. He's naturally her boss, and teases her mercilessly while pining for her and she starts off wanting nothing to do with him. Add in cliche second leads and there's your plot.
There's nothing inherently wrong with any of the above. They're staples for a reason and can be fun to watch. However, the show is fairly low budget and it very clearly shows; scenes chiefly take place in 5 locations, and the directing is nothing spectacular.
The biggest flaw is the acting. Seong Hun, whose slowly improved over his career, seems to revert back to his New Tale of Giseang days with stiff acting while Song Ji Eun feels very aware of the camera and awkward. They have little chemistry with each other which is an issue when the entire premise is the romance.
That's not to say there aren't any redeeming points. It's a light, breezy watch filled with swooning romantic moments. There's no big bad, no overdone melodrama and it's great for running in the background because the plot is easy to follow.
Recommended only for fans of romance who need something to tide over during a dry spell.