I really want to love this product because my Roomba is wonderful. I did not use it very much initially because I had a housekeeper. However, since quarantine, I've used it more frequently. Unfortunately, it leaves streaks on the floor no matter what pad or solution I use. Customer service has been working with me and they've been very helpful. Unfortunately, none of the recommended solutions have solved my problem. I'd like to think that my unit is defective because I don't see many people complaining about this issue. Hopefully, they will replace my unit and I can try it with another. Still waiting to hear back from them.