I use Coles because I did a basket for basket comparison with woollies and found woollies over $20 dearer. Coles also do free delivery here every Wednesday, whereas woollies are random free days and not as often.

I do save because I stick to my list and my budget. I can still browse the specials but I have a total and can be more focused on sticking to it rather than throwing things in the trolley and hoping for the best.

I haven't had an issues with the quality, but I often have stuff unable to be supplied. That however is more due to our remoteness and the timing of the freight train lol.