Shark Matrix Robot Vacuum with Matrix Clean - No Spots Missed on Carpets and Hard Floors, Precision Home Mapping impressed me with its cleaning. I decided to see how well it worked compared to another brand robot vacuum by sending out my other brand first to vacuum. After the other noisy brand completed its job, I sent the quieter Shark robot vacuum out and once its job was completed I was surprised to see how much more was picked up off of my floor when I opened the bin. On the downside, the the Shark did not fit under my sofa to vacuum nor have a removable filter as my other brand.