I've used them over the years and found their work to be competent and cost effective.
I've bought several sets of tires; they price competitively and they include lifetime free tire rotation when a set of tires is purchased.
Oil changes are cost-effective as well; they are now at $16.00 and you can pay less if you apply for their card.
Their credit card is nice because it lets you pay over 90 days for purchases.
I've had them do brakes (much less expensive than the Nissan dealer), wheel alignment and much more.
They have good counter personnel and keep their promises as to when a car will be ready.
You should look in the paper for coupons which can sometimes reduce the cost considerably.
They are a good choice for tires and auto repairs.