They are not as well known as their big brand counterparts, but Bushman Fridges have been making portable fridges for Australian's for over 20 years. Essentially the portable fridges we see today are the same fridges produced by Bushman, in the beginning, only they've had 20 years of refinements and modifications to ensure they work.
Bushman's difference to competitors in the market is that they don't make fridges to look flashy, they don't use cheap materials and they don't integrate technology and gimmicks that make the product difficult or expensive to repair. Instead their focus is to use high-quality materials, to make fridges that are tough and stay cold no matter what the ambient temperature or climatic conditions are, and it should remain at the temperature you set it to.
Bushman fridges are versatile, reliable and on the occasion that it may be required, repairable. On top of this, the company has a strong focus on customer service, they want your fridge to perform as advertised as much as you do.