The first one or two seasons are okay as long as you knock back a beer or two before watching an episode. The latter ones... even having a beer or two did not help for those, I just watched it to see where the plot goes.
Still haven't watched season 4, but the porn has spoilered a few key plot elements already. Not sure I really care at this point anyway.
And yeah, I only started watching it in the first place because of the porn.