Went back today to hwe the lobby carpets in both buildings. Thick pile wool. Did an inspection with the strata president. She was just gushing over how nice the carpets looked that we cleaned with the orbot. It always looks better the next day. I didn't really think it would work as good as it did. For someone who has used hwe all his life, it seems like you are only doing half a job, scrubbing and walking away but the results speak for themselves. I wouldn't recommend it for residential but for commercial, it does a beautiful job in half the time compared to hwe.