I have been several times and there is an AMAZING mall in Auburn Hills which is near Troy, Michigan. The mall is called Great Lakes Crossing and if you look at it online it lists all of the stores and gives a map and driving direction. The mall is beautiful and huge so you might need a couple days and there are other stores in the area as well (Target, Costco etc). If you like designer stores there is a mall that is primarily just that (Ann Klein, Gucci, Coach, Banana Republic etc) called Sommerset Collection and is in Troy so not too far from Auburn Hills. If you like shopping in Buffalo you will LOVE shopping in Michigan...way better IMO. Also, if you can get a good rate, we have stayed several times at the Embassy Suites in Troy, Michigan and the rooms are huge with a separate bedroom and the rooms have a fridge and microwave and hot, cooked to order buffet breakfast is included in the price along with a happy hour from 5-7pm that includes free drinks

Have fun!