I have only used them a few times. The finish machine quality was not as nice as the ARB lockers. The total price for both lockers, each with an air compressor and all the installation parts, was about $900. That was a few years ago, so it may be higher. The sales guy even followed to see how things went. It will be at least $150 shipping to the US, if I remember correctly.
PM if you want his contact information. You will need to download WeChat to talk with him. Some people are hesitant to use WeChat, due to the Chinese government being Chinese the government. I had to use the app in order to get anything done over there. It's the best way to communicate with locals. It's more prevalent there than Whatsapp has been in Europe.