Bests & Worsts Reviews from Amazon

I spent the extra money to have the wifi connection to the robot only to find that it can have a major bug issue in the robot. The robot would clean very well in my house (I would give it four stars for cleaning) considering I have dogs *one being a 150lbs+ Mastiff*. But the dang robot would keep disconnecting from the wifi. When this happens the robot won't clean unless you manually tell it to clean your home. Completely defeats the purpose of spending the extra bucks to have the wifi. I called Shark, got moved up the help tiers as the problem continued to happen regardless of all the resets, etc. When it came down to calling the help line when you make the "final tier" they told they had no idea what was wrong with it and that I would have to pay $20 to send it in to see if they could fix it. This is after 2 1/2 weeks of calling, etc. I asked if I could just have a replacement sent, the answer was no. Asked if I could speak with a manager, the answer was no. Thus ending me with sending it back to Amazon due to dang thing not working.