I downloaded this to try it. The first thing I noticed is there is no Google search!

I can only search one source at a time (not serious)

When I get results I click a thumbnail and see the very ugly enlargement of the thumbnail (far better to just look at the thumbnail)

I cannot see any way to view the original full size image. There is no URL to the original. There is a link which when clicked results in a URL too long error.

It is fast but it is useless if I can't even find the source of the images.