I love Superstore prices and I love Superstore products - but my god do I hate the actual process of shopping at Superstore!
The parking lot is always packed and lines at the cash registers are always ridiculously long. What i have found particularly frustrating recently is that they often run out of their weekly specials. Sucks to go to a store with a grocery list of specials and leave the store with the same list of unpurchased items.
But yeah, my big grocery orders here always end up costing me substantially less than at Coop and Safeway, and I love the kids' clothing. The staff are courteous - I just wish the shelves were kept better stocked and that the cash register area didn't always have mile-long lines.