We were just there over Tday and we had a 3 bedroom unit and one bedroom unit so I picked up all the supplies from each unit and used it just in the main one. I can't tell you exactly how many rolls of toilet paper there were, but we didn't run out, were at least 2 boxes of tissues per unit, didn't run out of those either.
They provided a mini liquid soap that would have lasted us all week if you used the dishwasher most of the time. They provided enough dishwasher tablets for either 1 or 2 uses so we brought quite a few of our own. We basically ran it once a day. They provided a cheap sponge but it worked fine. They provided 1 small washing machine powder box, and I brought quite a bit of our own as well as dryer sheets. We brought our own napkins.
Sounds silly, but... on Sat and Sundays there are a lot of people checking in and out. I put our leftover items that I thought someone might use (brand new toilet paper package, paper towels, napkins, unopened chip bag, laundry detergent, etc) with a sign that said free on the first floor and within the hour they were gone. So you never know!
A few other bits of advice...
don't buy anything from the store downstairs, completely outrageous. Winn Dixie is much cheaper. Goodings is expensive also. Giordano's delivers there and it is yummy! The kitchen was pretty well stocked with the basic items, but I wished I had a better oven mitt, theirs was small and flimsy. Also, you can change your towels one day of the week, can't remember which day. Other wise they don't change except once a week. There were plenty of towels for us if you reuse them.