They are a good tire IF you are going to use them.
In other words don't let the car sit. My Primacy's are 7 years old, the car was stored inside 97% of the time, and they are no longer safe for the highway.
My dad has had two sets and by the 8th year in lower usage, garage stored vehicles, he has had two set dry rot as bad as mine are.
My tires only have 6,000 miles on them and I will have to throw them away this spring due to heavy dry rot.
If you can wear them out in four years go for it.
I won't buy any more tires from this manufacturer until such time that they can refine their compounds to prevent dry rot.
A lot of people will flame me but an 80,000 tire would last me 7 years with my total mileage per year as an average.
Good luck.
jimm1009