Hizero is really good and clean. Effortless. Highly recommended. Service and after sales is very good.

Been using this for at least 3 years already. None of my friends complained also.

Don't compare with viomi robot la. Diff function and concept. Viomi if u charged already is ok. Change tank and it's ready to go. Hizero is for those spur of the moment when u spilled or soiled a portion of your place.