My experience with Neoden's after-sales service is also good.
They sent me at no cost, by DHL, two new trays for components, also a narrower custom metal piece to place the trays. Then, they sent me, also at no cost and by DHL, a piece for the feeder by vibration.
And recently, I detected a fault in one of the cameras and they sent me, again at no cost and by DHL, the computer's motherboard, two cameras and cables.
The product is good in general, although I think they should improve some things, such as replacing the motherboard with VGA output, for one with HDMI output, replace Windows XP in Chinese for a Windows 7 in English, and allow the machine to install electrolytic capacitors that have a height greater than 5mm (something else with customized nozzles), I have some 2200uF capacitors with a height of 10mm that I would like to install, although I have not yet been able to test with the custom nozzles they made for me, which are shorter, and maybe I can install these capacitors.
Really the only limitation, which in practice, should improve, is the maximum height of the component, which officially can not exceed 5mm, I do not understand why this limitation, something that prevents installing high components, for example many electrolytic capacitors.
An interesting improvement would be to connect to the machine via Ethernet to control it from another PC, to avoid having duplicate, mouse, keyboard and monitor. With Windows remote desktop options, it could be done perfectly if we have access via Ethernet, although for that it would be better if the machine installed Windows 7 or 10.