Aldi may not be low quality in Germany (It's just a.n.other supermarket there), but in the UK, it is definitely percieved as such. A small percentage of the stock is german delicacies, and a further small percentage are standard brand name items, however the vast majority is off-brand look-alike items, usually dangerously close to a trademark infringement. Combined with very low prices gives it something of stigma with shopping brand snobs.
I'm not sure that the UK perception of Aldi is "low quality" as such. "Cheap", yes. "Chaotic", yes. "Just generally a bit weird and foreign", overwhelmingly. But i wouldn't expect the actual quality of the goods to plumb the depths of a Morrison's, or, god forbid, an Iceland.
But then, whilst i don't live anywhere near an Aldi, i have become something of a connoisseur of the baffling Teutonic delights of my local Lidl, so perhaps i'm biased.
I don't and obviously you don't but overwhelmingly everyone I talk to does percieve it, or at least auto-assumes it is because of everything mentioned above. Well at least in people who don't actually use Aldi (or Lidl for that matter) regularly
