I miss UK supermarkets so much, you guys have no idea how good you've got it.
Billa own the market here, they have stores every few hundred metres. The range is poor, the products almost entirely domestic (I notice this mainly in the beer section - no Singha, Tiger, Cobra, Kingfisher, Kronenbourg, Grolsch, San Miguel, Peroni, Bira Moretti...), and the fruits & vegetables would not make the clearance section of most UK supermarkets - I'd never seen a cucumber you could bend 90 degrees without it snapping until I moved here.
All this would be ok if it was also cheap, but it's not - it's very expensive.
I don't keep track of UK supermarket prices much but:
A branded tub of cheese spread €2.99
Own brand butter €2.89
Pack of vine tomatoes €3.79
2 chicken breasts €7.99
Not what I'd call reasonable.
Aldi is called Hofer here and it's broadly equivalent to Aldi in the UK in terms of price and quality.
Lidl has a very small footprint, and my closest store is a couple of km away so I don't often go there.