I know it's not really an AIBU but I couldn't work out where else this question belonged.
Basically spurred on by the poster who said there was a woman at her work who brought in a portable air con unit, I searched through amazon and eBay and nearly bought one for less than £40. The reviews were generally good but then I know they can be fake. I added to my basket but then I thought for less than £40 it's too good to true so cancelled the sale.
Anyone bought one and found it does a good job? I'm just really looking to cool the bedroom down which at night is literally like a sauna.