I have not used any other,
It was a "gift" from a store with the purchase of a crib.
It is incredibly convenient, especially now with the second child.
It has a very good range as I live in a 130 sqm apartment and it reaches from the living room to the children's room, which is on the other side.
The image quality is also very good (no comparison to the photos it shows, of course, but it does the job).
As for the negatives, I would only say that the battery needs to be charged frequently, but it is understandable for such a size.