What I liked:
* The general atmosphere of the movie was relaxing, they managed to capture the feeling of sitting in nature on a hot summer day and falling in love perfectly.
* The storyline is a good fit for the length of the movie.
* All three main characters, especially the bodyguard. They all manged to convey their feelings without trouble. I liked the bodyguard's reaction to that suspicious person, his worry and gradual acceptance of what is to come. Also, I love that it remains unclear what his feelings are exactly -- loyalty, friendship, romantic love? Sometimes things are muddled and it's good to leave it open.
* Although I'm usually wary of timeskips, that one at the end worked. In my opinion, showing what happened directly after the return would have felt very differently to the rest of the movie. Good choice, there.

What I did not like:
* The last ten minutes or so feel weirdly paced, in contrast to the majority of the film, which is pretty slow. I think they tried to convey a sense of urgency, but why then this strange flashback to the conversation between the lady and the bodyguard?

Overall impression:

It's a nice romance, with okay-to-good pacing, nice scenery, and well acted. The story is captivating and although it is on itself quite predictable, the characters and their actors make it something special.
There are some questions that remain unanswered, sometimes I liked the ambiguity, sometimes it would have been nice to have it a bit clearer.

[This is a slightly edited version of the review I posted on Viki.]