I've got a Blackbird Fly (orange model).
I must admit that it's a camera I have a Love-Hate relationship with.
The camera in itself is well built. They put a lot of effort on the styling and I must say it is gorgeous. It comes in a clear plastic dome that acts as a bird cage, very clever as it keeps the dust off when it's not in use. It shoots three formats which are well identified on the focusing glass (square-regular-regular w. sprockets).
But, it has two things I hate about it. First, they used a lens instead of a groundglass. This makes the image hard to frame as you have to look down at a precise angle to see the whole thing. Second is the rewind button which must be kept pushed when you rewind.
But apart from that, everything else is just lovely. It's also got focusing à la Lubitel and an instant/bulb button, tripod socket, sports finder, f/11 lens...