Walmart Supercenter at 2201 North Young Boulevard, Chiefland, Florida.

This place is always clean, the restrooms well stocked and clean, too.
I'm not always able to find a particular item (despite having shopped there since it opened) & the employee I ask to assist me, in most departments, drops what they're doing and happily guides me to the item or, if it's not on the shelf, hurries to find out why.
The deli has been consistently slow to serve customers when I used it and the workers often seem "cool" rather than "friendly".
The Customer Service Center usually has a short line but they are efficient and transactions are completed in quick order, so wait-time is minimal.