Not a comedy, not a drama. That's fine because the movie, as the life, is more complex than placing into a single category would otherwise imply.
Do not expect any laught (comedy) or tears/anger (drama). This is a mix btwn a coming-of-age story and living in a, somehow, dysfunctional family (dysfunctional because of grandma last words). The tone is that of a comedy, I would say a rated comedy, the content is (supposed to be) more serious.
I loved the work done by Joey King (Jamie), not so much the character she played, a self-centered girl. However who would ever like the way a teen behaves or think when he/she is in the middle of the hormonal storm and in the phase of finding herself as an adult; indeed, most of the time, you cannot even stand your beloved kids when in that phase, so not loving Jamie is understandable.
Nothing to say about the other characters/actors. They are either dull, not quite convincing or just poorly written.
You can watch it and forget but not regret.
BTW. I read some comments claiming that the movie content is anti-semitic. No way it is (see the producers)!!! Quite the opposite indeed. Catholics (grandma & most characters) here are seen as hypocrite, dumb or just followers of an empty rite. The final scene (Jamie speech at the church) is one of the most offensive thing I could ever had imagined. Acceptable as viewer because movie need to be free but over the lines. The same the depiction of the young priest, depicted as someone searching a stable job occupation (really? In 2018, being a priest in a post-religious world is something not really "safe"). Last but not least the german character (the "real" grandpa of Jamie) is just a joke, not even a stereotype because to be a stereotype you need a truth behind
BTW. I read some comments claiming that the movie content is anti-semitic. No way it is (see the producers)!!! Quite the opposite indeed. Catholics (grandma & most characters) here are seen as hypocrite, dumb or just followers of an empty rite. The final scene (Jamie speech at the church) is one of the most offensive thing I could ever had imagined. Acceptable as viewer because movie need to be free but over the lines. The same the depiction of the young priest, depicted as someone searching a stable job occupation (really? In 2018, being a priest in a post-religious world is something not really "safe"). Last but not least the german character (the "real" grandpa of Jamie) is just a joke, not even a stereotype because to be a stereotype you need a truth behind