I would not use Tires Plus in Suwanee(in Walmart shopping center). Have had several bad experiences with them.
Their management does not care about customer service so therefore the employees don't either. They try to get you in store with a cheap oil change or a free AC check and then they try to convince you of expensive other items that need repair even if not a problem. They charge $189 to do a transmission flush as an example. You can go places that charge $89 like Texaco's Express Lube and get things done in about a 5th of the time.
A standard rotate and balance at Tires Plus will almost always take 2 hours to complete the service. That's 20 - 25 mins to do the work, but the wait takes at least 1 hour and 35/40 mins.
Don't trust them at all with anything that is said! They have enough business that they don't care about losing customers here or there which shows in their lack of customer service.