Bests & Worsts Reviews from Amazon

I don't usually do reviews unless I am extremely disappointed or extremely impressed. I am writing this review because of the latter. I was very apprehensive to purchase this because of the mix reviews for robovacs but a coworker convinced me because we recently got a puppy who track stuff in.from outside. He also isn't suppose to shed. Well after using my shark ion robovac and emptying the container I was extremely impressed. I.also see that our dog does shed but it wasn't visible. I was shocked at what it picked up because I thought my floor was fairly clean. The only reason I didn't give it 5 stars because it didn't clean the whole surface area I watched it and with the random pattern and there was areas missed.