Yjos is my 4th review since 12/2/20 when we received our vacuum. On the 2nd use it started to make sound grinding noises, and on 12/7/20 Customer Service sent us replacement rollers because they said the rollers may be defective. On 12/ 21/20 we received the new rollers and I installed them and the grinding noise went away. I will use it again tomorrow and hopefully they will not start making the noise again. Thank you Customer Service for your help and sending me the new rollers. We are very pleased with our vacuum now, it works a lot better then our Roomba Server 900 which we have owned for 5-years. Yes I would recommend and the reason it make noise is because the vacuum is a lot stronger then our old one and it picks up everything. Yeas I would recommend.