Everything was already said about this device (I bought the 350W version) - I chose it based on the many positive reviews. What I can add is that it's quieter than I thought, it has a very friendly 1-cylinder diesel engine sound, accompanied with the whistling of the cooling fans. However, for filling a 0.3 L HP air can from 200 to 300 bars, the fans don't even need to be switched on, it happens so fast that the device temperature barely reaches 40 C.
Packaging is excellent (I think, by the factory), build quality is totally fine, I am fully satisfied and recommend this device to you.