Blink here too. Received as a gift. It does record to the sync box via USB, but only after the free trial has finished or you’ve ended it. Why? cos it’s Amazon and they want the cloud revenue. So as a result and from what I’ve read you’ve got to dick about deleting the sync box and re-adding it back in order for it to force to USB recording. I’ve read you then get recordings but no thumbnail view. No biggie though. My trial is still running so I’m waiting for it to end, but they do seem better than the Ring where you’re tied in to a sub if you need recordings.
I also bought a new second gen echo dot from eBay for £13 (which I permanently mute) this handles the chime in the house. Shame an internal chime device isn’t supplied. Those Eufy doorbells look great and their cameras are excellent.