Luba is almost there.
When Luba works, it is a great convenience. The lawns are neat and orderly. The device works quietly and constantly. The negatives are 1) that it looses its way about 25% of the time and will not go back to home to recharge. Where it stops is not predictable and the app does not give you a notice that Luba is stuck. If it has been stuck more than a few hours Luba looses its charge and you will have to carry it back to the charging station; otherwise you can use the app to drive Luba back to its station. 2) Even at the charging station a charged Luba will sometimes not be accessible from the App and you will have to go out a nd move it or restart it. 3) Also, when lining up with the charge port, Luba does a little dance and creates a circular path and destroys the grass at that location. It really needs a mat. The mat cannot be insubstantial. I tried a plastic mat and Luba essentially pushed it aside with its wheels.