It took me about 6 months of calling them to get them to actually cancel auto renew. Every time I tried to cancel it would either error out or say it was going through then next month I would still get billed. It was a fucking terrible customer service experience. Never again. Only pre paid cards from now.
It just filled out a lot of backstory for me. The final arc of season 5 is pretty good. They do some crazier stuff in series 4 and 5 that are pretty interesting but yes I did take a break around season 3 and came back to it later.