outdoor green house tent

What do you guys think about using this
http://www.ebay.com.au/itm/NEW-GREENHOUSE-GREEN-HOUSE-PE-STEEL-WALK-IN-/321024711451?pt=LH_DefaultDomain_15&hash=item4abe905b1b&_uhb=1#ht_2106wt_1139

I want to grow outside (don't wanna have to buy lights, ventilation etc).
But this thing blocks UV rays.
Any suggestions.
Am new to growing.

Ari.

Im about to try and build one out of an old tent frame and painters plastic this coming spring.