I've watched this movie several times in the past few weeks. I think a lot of people try to take this movie more seriously than they should. Being a person in her mid twenties as well, I found this to be very lighthearted and up-lifting. A sort of reminder of the weird, awkward situations we find ourselves in throughout our lives. But this movie makes it very amusing. I think you have to have a particular type of humor to appreciate this movie for what it is: a parody on addressing change in your life in response to some shitty situations.
The way the characters transform over their summer break is really drastic. Usually when we change as people, we tend to overcompensate and fall back somewhere in the middle, which is where this leads. Two, early thirties people decide to explore a part of themselves they've never had a chance to. Whether they were pursuing careers or building other relationships. The way they go about it is raw and sort of awkwardly wild - which I appreciated it. We've met people in those stages in their lives before. And I'm sure at some point, we will or have done it.
Lastly, the sources of their inspiration are very amusing. In addition, the quotes and jokes in this movie are a riot. All of the dialogue is something we've either thought of on a date, or have feared happening. So, go into this movie lighthearted and ready for a good laugh.