s6000--close-up lenses

[DWFII]

I've been looking at close-up lenses--the Raynox DCR-250 and the Sony VCLM3358--but I have not been able to find any specs on them. In other words...are they 1x? 2x? or 10x?

I also ran across an ad for the Opteka HD2 10 close up lens. Has anyone used one of these? Good? Bad? Indifferent? How does it stack up against the others?