Actually between this and the previous version, there isn't a huge difference apart from the ever so slightly stronger suction power and the mop. So I am not sure if it warrants significant difference in price. I have used the gen 1 Mi Robot Vacuum for more than a year now, and it cleans well with high suction power, just 1 notch short of the max suction power settings. Also, I feel it is not very effective over mats/carpets that does not have those anti slip backing as it tends to push it around instead of going over it. With the mop now, I am thinking it can may be trickier to go over mats/ carpets.