Opinions or review needed

[TankBuster]

Hi, has anyone used one of these or know of the product? Are they weak or strong? Is output as good as it states? Below is a link, thanks.
http://www.drsfostersmith.com/produ...&Ntx=mode+matchallpartial&Np=1&pc=1&N=0&Nty=1

 

[rockinthe40ounce]

i used this on my 55 and it works great
http://www.amazon.com/SEIO-Super-Fl...r_1/105-2025543-8466021?ie=UTF8&s=home-garden

 

[TankBuster]

I use Seio pumps also, they are great but this one here is a new design so I thought I would try it on my big reef and just needed to know if they were worth trying.