Ours is within 1/4 mile of a WalMart and the prices on vegetables, milk, eggs better and equal quality. Also cleaning products equal to the more known brands at a deeper discount.
A German based company. No fancy displays. Items on shelves in original boxes. Friendly efficient staff.
Lived in Europe for a few years as part of a corporate assignment and became familiar with them there.
Christmas time they bring in a lot of cookie / cake products from various countries that we remember and enjoy.
Give it a try to see what you think
Like a friend used to point out about winters in North Dakota, "It tends to clear out the riff raff". That and the fact that the local free university bus stops at Walmart and not in from of Aldi's makes a difference in the clientele, but there is a definite difference.
Don't know if the quarter deposit is universal for Aldi's, because this local one is the only one I have been to. My wife goes to Walmart at least once a week for groceries, and we do go to others sometimes. Totally different experiences, even with price variations. No one store seems to have the best price for everything we buy.