To complain, I find the limited viewing angles. You have to pretty much draufschauen, otherwise the image (typically LCD) appears inverted. The resolution I find pretty good for such a small screen.
The range is DECT standard in order. If you in your apartment have no problems using your DECT phone, I'm sure, the best they can reach technically good even with the device.
Camera I have bolted to an old surround speaker stands, which worked surprisingly well. So I can Camera wonderful position on crib and monitor the little ones 1a.