So far I've used one starter box in the kit i was sent. Shipping took a little longer than what was advertised online. Product so far has worked as advertised and we have had the opportunity to harvest one crop so far, all was good. I had a question on the shelf life of the product which i tried to look up first under FAQ but didn't find anything. I sent an email asking for direction on the shelf life of the product but never received a reply so i am hoping for the best. We couldn't start all boxes right away as we were going on vacation so hopefully they have some shelf life and will still be good upon our return. All in all a good project with some edible rewards at the end.