The advantages are low weight about 8 Kg so I can wear the device well over stairs. Easy to start and recharge quickly in about 50 Minuten.Schneidet clean also 15 cm tall grass and stuffs the pot brim. Negatives I have to mow my ca 300 m -Hanglage- recharge a battery. I think the mower is not really quiet -secure quieter than my old Motormäher but nothing for lunch time ...