it works only when u have at least 2 similar photos
it just takes some good parts from each other to "rescue" the pic
if you don't have 2 pics, or both of them are bad.. it can't do anything
it is just simple copy and paste technique in photoshop, but i think it is good for ppl who have 0 knowledge in PS
of course it is nothing compare to PS, it provide a quick fix for regular users. And the beauty of this thing is you can do it online, right in your browser, which is not something easy.