battery, so far i didnt encounter any. if not mistaken, i used for 1yr+, close to 2 yrs

clean mou a, each place the robot will run 2 times, go n back. Though my floor not dirty, but it able to suck so many dirt, which i also surprise. 

i bought around 1.2k, personally i feel its worth. very good example, during eve of cny or after relative visit my house, i just turn on the robot let it sweep n mob by itself. because too tired of prepare cooking n stuffs for cny, so robot is a good buy, regardless what brand

I bought it from taobao (Roborock official flagship store), then add on some spare parts like brush, cloth for mop and the magnetic stripe. U can PM me, i share the link to u

metoo

Gen 2 - S50/S55 (white and black color)
Gen3 - T6/T65 (depends on market Non China/China)

Menu wise got English no worry even for China Unit

No official store here so all unit import set