Kiev 88 prisms on Hasselblads?

Whom here uses Kiev 88 viewfinders on Hasselblad cameras and, why?

I have, but I don't right now.

Why I did:
- Cheap.
- cheap meter
- it works.

Why I don't
- I picked up a PME51
- Eye relief on Hasselblad prisms are better, especially for glass users
- non-metered NC2 is not expensive, and better than the Kiev copy