I enjoy shopping at Aldi and have shifted to doing the majority of my grocery shopping there in the six years since they arrived in my city. However, the key to understanding Aldi is that Aldi was never intended to fully replace shopping at a traditional grocer. They are founded primarily on being somewhere to go to get good deals on canned goods, non-perishables, dairy, and so on, but then still going afterward to a traditional butcher and bakery to top off your grocery shopping.
My favorite items are the weekly "Aldi Finds," which are always listed in full on the Aldi website. They sell a lot of imported or specialty goods that satisfy my curiosity to try new flavors but which are either hard to find in traditional grocery stores nearby and/or quite a bit more expensive. Some of these products you will only ever see once at Aldi, but a lot of them regularly show up 1-3 times a year.
The home goods sold as "Aldi Finds" can also be good deals. I've picked up some quality cookware over the years, but I especially like their line of gardening products in the spring. For instance, their bags of gardening and potting soil have a better price/cubic yard than anything else I can find of comparable quality elsewhere. A few years ago, I purchased a tumbling composter for $40 that I have been very pleased with. Their seasonal plants are usually good deals, too - $3.49 for a quality 6 inch poinsettia around Christmas, for example.
Fresh meat and produce continue to be their weak spots, though I do feel they have improved quite a bit on produce in the last couple years. I can say my local store has a decent selection of consistently high quality produce for a low price. You still have to be flexible, though, because they primarily only carry whatever is in season at the current time, and there's no guarantee they will have a specific fruit or vegetable in stock the way a traditional grocery store might.
As far as cleanliness of the bagging areas during COVID-19, I've thought about that too. The employees at my local store regularly wipe down the checkout lanes, and they provide hand sanitizer and sanitizing wipes at the entrance, but I never see anyone cleaning the bagging areas. Admittedly, being an Aldi employee already meant being continually busy, so not having time to tend to that area of the store doesn't really surprise me. Since the start of the pandemic, if there's ever been too many people in the bagging area for me to feel comfortable, I've just gone outside to my car and bagged up my purchases there.