I saw the unit at B. Perkin's place last year. Inquired to T&M about it and ended up getting one through them and had it sent truck-freight.
The media life is about -1% for every 30 minutes run. I doubt it has been run for more than 10 hours, usually only takes 15 minutes to tumble most parts.
Haven't noticed any broken media, it's pretty thick, so rarely see the bottom. There is a drain at the bottom where the lubricant circulates out. A small pump sends it to a rail with a few holes that drip out into the media. The lubricant is a specific type for what is being tumbled. Same stuff shown on the T&M website.