Value for money: TOP The Rotenbach Robomäher is not cheap, but good value and comes from China. It is marketed by the "Supaman" and receives the label "Rotenbach" for Germany. In China it is considered a long-standing quality products. The build quality is high as in the competition - generally good and high quality. Was delivered within 2 days! Supplied with charger + transformer, another set of blades for lower cutting height, 100m cable, remote control, good German instructions, etc. - everything to get started immediately. The boundary wire should be placed approximately 35 cm from the edge. It should be noted that the Robo center rides on the cable back to the charging station. This model is the latest and has a digital display, can be set with the weekly or daily programs: It is determined a working time and the days on which this applies. Several hours or several times per day are not possible - needs no human. The Rotenbach definitely one of the quietest mowers on the market, which is top notch! The installed battery should be a Li-Ion type -> no memory effect. If the Robo charged, he drives himself back 10 cm and releases the contacts - exemplary. With us, the battery lasts about 4 hours. But I let him just 2 hrs. Mow every 2 days. My 150sqm lawn it creates incl. Pitch playing. I think that several hundred square meters should be no problem. But noted that this will only accept a Robo einizige continuous wire loop. So far, mows, as far as the season comes to the already very reliably and without interference. I am so far very satisfied and would recommend this mower necessarily - not only because of the price the product highlight. For further questions you answer the phone or watch forum roboforum.de