Tilta BMCC Rig

Has anybody bought one of these and can you say if they are any good or not? Can I also use it with a DSLR or GH3?

https://forum.blackmagicdesign.com/
https://forum.blackmagicdesign.com/viewtopic.php?f=2&t=10250
Euan wrote:Those carved handles look really nice and I like the fact they included a record button on them. Wish they sold them separately since I've already invested in a different rig, but still need some handles.
Mike Halerz wrote:http://ikancorp.com/productdetail.php?id=704
Mike Halerz wrote:Also worth noting that I recently emailed them to ask questions about upcoming rigs for the BMPCC and got a response within an hour. I've been told this responsiveness translates onto the support side as well, but haven't needed to test it yet.
Ryan Jones wrote:What was the answer Mike?
I have a Tilta rig for my NX5 and its pretty good, would look at one again if I had to. Adapting other cameras to my rig is impossible without an EVF.