Not bad, not good. Not so interesting, not boring. Anyone can guess where it goes during the first 5 minutes but it's still watchable and somewhat entertaining. I think the best quality of this movie is acting. The anti-heroine is convincing as it gets. Being simultaneously the writer and the director, it's obvious that she gaves her everything for this. This could be better if it had a twist at its ending, i expected something unpredictable to raise the bar. It got a bit of mundane during the final part.
In any case, this is a watchable dark comedy and any fan of this genre will find here a lot to like. I liked it more than i disliked it but i can't recommend it because there are far better movies to watch.