Too Good To Go App. Anyone using it?

I just did a search here and saw that a few months ago folks were asking for the Too Good To Go service to come to SF. I heard it did recently so I downloaded it cuz it sounds like a great idea. To be fair it's only been a few days but I've yet to see anything show up for sale.

Anyone successfully using it? Are there certain days of the week or times of day when it's more likely that businesses will have stuff available? I heard that Intoxibakes had some things for sale recently.

Would love to see this catch on here so I'm hoping more businesses are going to join.