I bought the one for the Emerald Square Mall in North Attleboro, MA. I don't remember if I paid $10 or $20, but it was well worth it. The parking was great because you could come and go and still have parking.
The seating area wasn't a tent, it was what I think was a break room for the mall employees. The refreshments were much better for my mall. In the AM they had donuts, muffins, coffee, etc. Lunch was pizza. They also had things like candy/crackers and soft drinks available all day.
I did use the secure baggage storage and there was no problem with it. I have to say that the staff running it were wonderful.
I hope they are doing it again!