Part of what you are paying for when you get an ARB product is their support system. They have a customer service reputation beyond reproach. All things being equal, I would still pay a little extra for the ARB locker.
ARB's core products are produced by ARB. They make no effort to hide that supplementary products are produced for them to specifications by third party manufacturing contractors. They do this in part because of the lost margin they suffer from sales being stolen by nock off product producers, which brings me to my next point.
The biggest gripe I have is that this is just the latest episode of China blatantly ripping off a product that they did not have to incur the cost to develop and research. This is BS, and the reason why I boycot many Chinese products. In moral terms, its WRONG, and by buying the nock offs you are perpetuating a parasitic campaign against companies like ARB that lead the industry.
If this was allowed in the drug industry, new product development would cease, because it would just be produced by "generic" brands as soon as it hit the market.
To the OP. There is no product support, the reliability of other Chinese products has been generally awful, and its just WRONG. Don't buy it.
Oh don't get me wrong, I boycot most Chinese made stuff regardless of whose name is stamped on it. It was VERY difficult Christmas shopping this year!
And don't get me wrong I wouldn't purchase any of their products anyways.