I've got Tacpoints on my M1A and FALs as well as my daughter's .22 AR and they have done very well, but I don't consider them to be as rugged as the Aim Point nor as relaible (no problems, I'm just skeptical).
While the picutered item looks like the Aim Point it does not look like the Tacpoint because it lacks the name and blue ring setting it apart.
There's no telling what this really is. It could be as good or worse, but without their telling who the manufacturer is we can't tell.