Finally watched the last two episodes last night.
I think it was a well done series, I just didn't care much for any of the characters, so didn't really invest in the show. My wife liked it a lot more than me because she dug the symbolism and the flashes and trying to figure out what was being hinted out or revealed in those way more than I did.
The end was pretty brilliant, and I like that they didn't spoon feed an explanation, it was just a realization by the character and some flashes of what really happened. We had to put the pieces together (including motive) ourselves. I do like it when shows trust their audience like that.