Has anyone used this fan?

Is this a reputable company that I can trust? Has anyone used this fan? It seems too good to be true price....what do you think?

Grasshopper

http://www.plantlightinghydroponics.com/valueline-inch-745-cfm-centrifugal-inline-fan-p-2261.html

Ok...I see the other thread about this company. I am gonna try it if shipping is not to much.

Hopper

I would go with the sunleaves inline fan its only 140.00