I had one in a Sprinter van I rented for a month in New Zealand. Loved it. Never did understand how it sealed so well, one of life's little mysteries.
Being able to walk up to the side of the van, pop the cassette out, walk over to a dump site, not restricted to rv dump sites, was a real convenience. Dump often, never think about having to find an rv dump site.
I'd have chosen one if it was an option at Escape.