We had to do a Roomba surgery , and luckily problem was resolved by clearning the gears.
But next time I swear that I will buy a Neato ! Why?
1.Insider knowledge: my friend who works in Amazon told me that Amazon insiders all use Neto, even though they sell both, just beacuse “it’s better”
2.I didn’t believe him at first, so I did some google research. This vedio on youTube has a very detailed comparision from quite a few aspects. Paticularly around 4:18, Neato is way more efficient in covering spots.