I felt the same way about PoI. I had started watching it last year when it was airing and had left it mid way because there was no concrete story line and felt like those detective shows with a new case every week.
Since so many people are praising it, it seems that the second season is a lot different so will start watching again.
Sorry, if I as not clear. I loved it, all 8 seasons. I only wanted to point out that it is quite a long series.