I had my first grocery shopping experience this morning, since a friend did my shopping while I was in isolation. I am in the higher risk group so was there for 7:30 (store opened at 7, first hour is for those of us who are more vulnerable).
Mostly favourable impression, staff had gloves but not masks, one way aisles were marked, lineup for checkout was spaced out, staff to limit entry and keep people spaced, alcohol spray and paper towels for carts and hand sanitizer for us, in and out were totally separated, lots of stock (limits on sugar and eggs), good barrier for the cashier, no cash payment. Most shoppers wore masks, most respected the one way arrows, most kept their distance.
If you are having trouble finding items, I would recommend going for right after the priority hour if at all possible. I even got TP, there were cartons and cartons of it at the end of an aisle.