5v Step Up question

http://goo.gl/TLX3B

 

Does anyone have experience with this type/brand of step up 5v converter? I'm comparing it to the Pololu one here: http://www.pololu.com/catalog/product/798 which is slightly more expensive, and then you get hit with shipping costs (for me it's about the same price as buying a second module).

 

Comparison:

Pololu 5v step up ($5.45 + SHIPPING)

-0.8 to 5v input @ 2.5% accuracy

-8.4 x 12.7 x 3.8 mm (0.33" x 0.50" x 0.15") small size

-40mV ripple peak @ low voltage (150mV at 5v input)

-200mA output

-Comes with male headers (straight and angle)

 

 

No-name eBay brand ($4.74 + FREE SHIPPING) 

-0.9 to 5v input @ unknown accuracy

-25 x 18.5 x 5.5 mm - bigger size

-50mV ripple peak max(!)

-1000mA output(!)

 

 

Any thoughts?