It's not so much over-rated as over-hyped and sold second hand for insanity. I enjoy Stonehaven very much and smoke about a pound per year, but would not pay more than $35-$40 for the 8oz bag (My local B&M has it occasionally and I buy it). If it were available regularly, I'd smoke more.
Congrats on your grab! Enjoy a tasty, premium quality tobacco.