Just posted is my review of the Zacuto Z-Finder.
I liked the Z-Finder a lot. Its optics are top quality, the view is expansive and transparent.
Anyone shooting video with their DSLR should get one of these asap, it’s the missing link for shooting everyday video with a DSLR.
Stills-shooting also is great, I highly recommend this unit to anyone who’s had to deal with a hard-to-see LCD in adverse lighting.