I spent almost all of this movie trying to figure out what was going on. I'm not sure I ever did. The story is kind of like what Eryn praises in her TV interview. I don't think you are supposed to know for sure and I think you are intended to work it out how you want it to be.
I am a huge Lindy Booth fan and I do think she was right for this role. She gets to play a variety of moods and even maybe more than one personality. But she does quirky exceptionally and much of the Eryn we saw was quirky. As of this writing, Booth is third billing on IMDb. That makes no sense since she was in almost every scene and no one else even comes close.
I've read criticism of Booth for her voice. Well hers was pretty normal especially compared to her main co-star. Fran's voice grated on me after a while.
I'm not much into comedies for many years, especially not what passes for it on network TV today. Likewise with many movies. I'd rate this movie as being in the top 5% for amount of laughs it got from me. Not to say it was all comedy because there were some sad moments as well.
I liked it. If I had been a little more sure of what was supposed to really have happened in Eryn's life, I might give it 7 or 8 stars. So does the ambiguity make this movie "artsy"?