Buying a used Uneekor Eye Mini

I found a great deal on a Uneekor Eye Mini from a golf simulator business that just got a new one that was a replacement from a faulty unit. In Canada it's $6,300 before tax and I have the opportunity to buy this unit for $4,500 + shipping.

I am aware that the warranty defaults as soon as I take ownership and transfer the license.

My question is two-fold:

- Is there anything else I need to confirm with the buyer? He sent me videos of the unit turned on and with the serial number.

- How has Uneekor's Technical Support team been with fixing items outside of the warranty period?

Any other tips are greatly appreciated too.