They're overpriced, underperform and are overly noisy. If you want, I can link you to multiple reviews that say the same thing. I really wouldn't recommend them to anyone.
Can you link me to what you recommend for 120mm fans of similar price? I don't really care very much about loudness. Just want the most cooling for my money.
I am able to get anything locally from here: http://pricespy.co.nz/category.php?k=370&o=produkt_pris_inkmoms#rparams=l=s105242490
Or from eBay if that is a better option.