If I could give this 4-1/2 Stars, as my favorite seasons are the first three! However that aside, Supernatural does deserve the 5, as it has been a surprisingly good series, loved by my wife & I both.
We didn't start watching the series until this spring, & got the 1st 9 seasons as a set, on the recommendation of a friend. I can't remember how long we had that set sitting around until we finally decided to try watching it, but by the time we got thru about 1/4 of the 1st season, we were hooked on it!
From then on we watched one season after the next (the only way to watch it!....esp. w/ no commercials or waiting for the next episode!) & when we got to the end, buying the next seasons until we were up to date was automatic.
The Blu-ray was a great transfer and the extras are all worth watching.
Overall, I HIGHLY recommend getting this, along with the rest of the Seasons. Supernatural is a really good series, and as our friend did for us, I HIGHLY recommend you give this show a try.
(I would highly recommend you to Watch it from the beginning! It is not something you can expect to enjoy if you just "pop in" for an episode or two. You could do that with most of the 1st three seasons, but the format/ story line is no longer "completed each episode", & much of it is now built from week to week.)
Anyone who likes this sort of subject matter, will love Supernatural!