I was super interested in the Dekken because it's smaller form factor and footprint.
However the first stage is folded by air shooting the garments and not a mechanical process, so it doesn't work well for heavyweight garments or heavy sweatshirts which even the ROQ fold struggles with sometimes, but shooting air to fold the sleeves and body ultimately made us not go with Dekken.
I believe the Dekken is a repurposed / reprogrammed towel folder