Robot Vacuum and Mop Combo

I had high hopes given the overwhelmingly positive reviews. My hope were quickly smashed as my first issue was that this item was not brand new. It was previously used (possibly returned, cleaned up and repackaged). The unit was missing the plastic adhesive wrap on the sensors. I have seen unboxing videos where these were removed as part of the unboxing. This also came with the spinning brushes installed. Again, unboxing videos of brand new items showed the brushes were not attached and required them to be placed onto the unit. Because the brushes were installed, the bristles were bent and warped. Another thing was the metal/aluminum charging contact points on the unit were very scuffed. Another indicator this was not new. Despite all of this I decided to give it a shot and if not happy just return the item within the 30 day period. What I simply did not like is the vacuum did not clean an entire room. It will just go wherever it goes and has no way to know if the entire room was vacuumed. It just operates in random fashion (incidentally, one of the vacuum modes is named random but all vacuum modes were random for me). Another problem is that this things takes forever to fully charge. Battery performance was poor for me and waiting for it to charge was simply too time consuming. The remote is a neat idea but is quirky in real life use. When given the command to turn "right" on the remote, it will do so. Sometimes it works perfectly and other times it will then want to resume its prior position. This was very annoying. I returned the vacuum and decided to spend more for a name brand unit. My advice is to stay away from this robot vacuum.