Definitely one of the better supermarkets in Cologne. They have a pretty large selection, and also…read moremuch more room to move around than in the smaller Rewe City locations.
One problem seems to be that when they don't have something on stock, it seems as if it takes ages for them to replace the items.
They do offer a fairly impressive wine selection from all over the world. Definitely one of the perks.
The staff is okay, not the friendliest in the world but also not the worst. For a German supermarket, it's pretty good.