Device is fine - available small weaknesses

Due to the good entries here on the net I decided to order this device.
In principle, the device works well with:
Parquet floors, tiled floors, rugs solid (at us about 5 cm height) with rather short hair carpet (here the Neato fighting successfully and seems to work very clean)
Most works on programming or without the device about 1.5 hours, then is reloaded.
Whether the unit after this period has finished all the rooms, is the device relatively unimportant. There is the bottom line always points which visited by the DO NOT. Whether there are better robotic vacuum cleaner that work better: NA.
Thus you need from and stand up to the unit where it just still have to suck.
It is advantageous that the robot drives over small edges (from room to room approx 05 cm difference in height is no problem)
Until now we had no crashes exceeded or the like.
Amazing but: what always ends up here on dirt and grime in the nipple, although we run the device almost daily.
Bottom line: better quality of life (!!!) and a substantially clean house.
The delivery was very fast, the machine is very easy to use. So far so good