I'm using it for months now, almost a year now, and it really is a great product, even better than Sidecar on MacOS because it's not only limited to the Apple Pencil to use the iPad tactile.
@mronge As an iOS Developer (but not only), the best use I found is to put iOS simulators (iPad and iPhone ones side by side) on the real iPad, to use them as real devices with touch gestures: https://twitter.com/erwanhesry/status/1359452104465788928