There does seem to be fluctuation in quality. But then with things like jackets, you're paying a quarter of what you'd expect to pay at
Wiggle etc. I remember having arguments with Bonj (who doesn't) about the quality of Aldi jackets. He'd got one home and the zip had gone, so they were all crap. Zips were one issue people seemed to have with them. Personally I'd have tried it on in the shop and given it a quick check. I've never had a problem taking stuff back, only in getting a replacement if they've sold out.... :-)
BTW a 2 year old Aldi black cycling jacket is my everyday coat.