I hadn't ordered from Sarah before but I decided to try her bluebottle flies, which is something I order online regularly. They arrived on time and are packaged nicely for storage in a deli cup with air holes. There were also 50 extras in both of my orders. The second one did have a bunch of hatches in transit unfortunately, but that also happened with the seller I have used a lot in the past. It does say on the website that cold packs are included for free as needed though, and I think it would have been beneficial in this case.
With that said, the deli cup packaging made it easy to put the container in the freezer for a bit then pick out the hatched flies and put the unhatched pupae in the fridge. I have certainly dealt with worse in transit hatches before, such as flies roaming free in the box!
Anyway, I do highly recommend PanTerra Pets' pupae. I am going to continue using them going forward.