Not me. Interesting that there is another thread at the same time asking how far people are willing to lug their FF gear. If I were shooting out of a car or, like Ansel Adams, had mules carrying my gear, that would be one thing. But there is no way I would want this and the correspondingly long lenses on my back. That leaves aside the fact that it is three times as expensive as my 5D3, which I figured was already a splurge.