Amy's Hallmark Shop at Mcginnis Crossing Shopping Center, 1977, 1000 Peachtree Industrial Boulevard Ste 7, Suwanee, Georgia.

This Hallmark store is extremely pleasant to visit. The staff greets you and then leaves you alone if you so desire, making it clear they are there to help, but not to intrude.
The manager really knows his product and you get the feeling he's a fan of Hallmark and their products, not just an employee. That said, there is plenty of non-Hallmark items available for quickly picking up a gift.
The parking lot of this store can get a bit dicey as there are numerous neighbor businesses, but that is really the only negative about the store.