She sees a guy, for the first time, obviously likes him, which is OK. Then, before the first day is over, she proceeds to tell him basically everything about herself, about her business, as if she was a five year old who doesn't know better. Of course, at this point you know that this will be the reason why she will feel "betrayed" towards the end of the film, like it usually happens in these films.
In some instances "stupid" works, the plot and characters draw you in, make you ignore the exaggerations and mistakes. However, in this case, nothing is believable. It is way too stupid. The main character is just idiotic and naive and the actress playing her is weird looking and bland. The brother is immature. The "bad boss" is ridiculous, more of a comic book villain.
I won't go into more details, almost every scene is a new afront to common sense. I don't know much about the wine industry and vineyards but I hope none of this ever happens, it doesn't make sense.
A final note is about the actors: they are all bad. Probably the "least bad" is the male lead. The grandparents are weird, their accents change in every scene, I don't understand what they are supposed to be.
If you want something to watch and relax, this isn't it. If you have stuff to do and this runs in the background, go for it.
