1984 Premiat Cabernet Sauvignon

[happygirl]

Please help! I am a novice...don't know much about wines. My father n law left us w/some collectibles, furniture, etc about 6 years ago..along w/it was a bottle of wine...1984 Premiat Cabernet Sauvignon. I've been holding onto it not knowing if it is any good or a hard to find one...soo does anyone know? Is this good stuff? Does the maker have a good rep? Any comments or suggestions would be appreciated.
Thanks and I hope all had a wonderful Thanksgiving!
-happygirl