I thought it was very good the first few seasons.

After defeating the big bad guy it really fucked with suspension of disbelief going for another season... and another, and another...

And while the premise of later seasons degrade the show, several individual episodes remain fun.

In summary, try the first few episodes. If you like it, enjoy the ride untill Lucifer bites the dust.

If not, it dosen't get better so it's not for you.

P.S. : It's still the tale of two brothers saving the day against the forces of Evil, but you won't be spared the occasional "badass woman". Not too much eye-rolling though.