Spiedel Braumeister

Anybody here using one of these?  Could you fill me in how it works?

Yes, all in one brew kettle, you lift the malt pipe when the mash is done. Like the Grainfather, but the flow is from the bottom up, which makes it difficult to lauter using the grain. Here is a quick overview: https://youtu.be/aRazNwUqnhg