alt Hacker NewsThese are definitely not robust. The product description mentions about 5 times that it will most likely be broken when it arrives to you, and will definitely break again in months or years so recommends buying extra first aid kits with spare parts so you can tinker it and keep it working.
I understand they are restarting production from scratch for a product that no longer exists and that nobody actually knows how to make, but being openly unreliable is a significant problem at this price point.