This is the 4th robot vacuum we've had in our house and I'll confidently say it's the last one we'll buy. The search is over! We LOVE this vacuum! The app is outstanding and allows you to map your house, set your programs, and operate your vac seamlessly from your phone. The battery life blows away the competition as does the cleaning performance! Put the other vacs on Craigslist and go buy yourself this Shark robot!!