I really enjoyed this series. Michelle Monaghan's acting was fantastic! It was very different and, to me, very entertaining. The ending leaves you somewhat up in the air but the show was so good I didn't even mind. Has anyone else seen this?
I just finished it. At first I thought it wasn't going to be that great, but I ended up really liking it.
This is my interpretation of the ending, but others may have a different one:
In the beginning we are led to think that Gina was always a problem and Leni was the "good" one. By the end, we realize that Gina is a good person who feels things deeply and Leni is sneaky, manipulative, and kind of crazy. They say they started changing places every year so that they could share Jack, but I think it was more so they could share Mattie. I don't think Leni was all that into being a mother and Gina was.
Anyway, when Gina finds Charlie's secret journals she reads that he long ago figured out they were switching and he learned to tell them apart by their "scent", and also that Leni was wild in bed. So I noticed a couple of times during the rest of the story that Charlie would very subtly "sniff" whenever he encountered one of the twins. So at the end, I think it is indeed Gina who is living with Charlie because he does that sniff thing and seems satisfied. We see Leni seemingly taking off for Australia but we never see her actually board the plane. When the TSA agent tells her that another woman who looks just like her previously boarded a plane, she realizes that Gina is still alive and it is Leni who is at the book reading in a hat and glasses, trying to find Gina. She's still a crazy stalker.
I didn't go into detail in my post but yes, I tend to agree with your assessment. I just would have preferred if it was cut and dry but that's not the way it was. As I said, I really liked the show and am glad you did too.