Surprisingly good!

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

-It is really helpful when looking at the lcd.

-Cheap, only $16

-Sharp glass and easy to focus on the screen

-Good magnets, they're strong enough to hold it on, but not too strong to be able to take it off.

-Comfortable against the eye

-The rubber eyepiece is a bit easy to scratch

One thing i wish to add to this design is to be able to take off the bottom 1/4" screw on the piece that goes on the camera. I want to be able to use my quick release plate directly on it to get it lower.

I was happily surprised about how good and helpful it was! In my package i ordered a lot of film stuff, but was most pleased about this one. For $16, you can't go wrong. And when it works as good as it does, there's no reason not to buy it!