Publix. A little more expensive but well worth it IMO.
No Publix in the New England, but we have a local chain in CT/MA called Big Y. They are non-union, American owned and offer Publix style service at similar prices. Always spotless, plenty of staff and the staff they have are always knowledgeable, courteous and presentable.
S&S offers the same high prices with a union workforce that work at their pace and would often rather finish a person conversation before helping a customer. Of course, the union has the habit of protecting the people who should be fired, thus keeping dead weight on the payroll.