I am someone who shops at Aldi and loves it. BUT it is a shock to the system the first few times and I think you need to cook/eat/meal prep a certain way to make the most of it.
I cook from scratch so buying the basics works for me. I don't really go for the weekly specials unless I need something.
The meat/veg at our local Aldi is really good. I do know it varies between stores and states.
The cheese and yoghurts are really good.
And their fridged deli things like olives, peppers etc are really good.
I barely shop at Woolies/Coles. I think the only thing we don't like is the bacon from Aldi.
I now find the layout of Woolies/Coles so confusing and having to make choices between brands makes me eeek!
I also love packing my groceries.