The Robomow RC 304 runs with us now for 2 months. The following points should be emphasized positively: The grass clippings picture looks really wonderful. No more noise mow the lawn and the Schnittgutentsorgungentsorgung omitted. Through several islands, 1 sub zone and a separate zone laying the boundary wire was with us then but quite expensive. Unfortunately, I have a big negative point programming using the app notice: Installation and registration of the app have finally worked with many troubles and error messages. The app is only available in English (although I "German" pretend during installation)! After countless attempts I however did not manage to produce the Bluetooth connection. To program the sub zone but this is imperative. Why can not I program the device in the sub zone ??? Here, unfortunately, is only the separate zone set! In Robomow forum I saw then that this problem have many other users also. Urgently needs to be improved by the manufacturer !!! Now I am afraid to go to Robbi between zones and forth wear! Is not that bad - but does so really no automatic Lawnmower!