The estimator came on time and provided an estimate of the cost as well as an estimate of the time it would take to complete the work. He told us that they will fill cracks into which a credit card would fit and that the smaller cracks might increase in size when the surface was ground. His estimate was for the grinding, filling two cracks and polishing at the end. He also asked us to complete a credit card form so that they could charge the 50% that they required up front. We completed this and returned the form. Then they gave us a date and time when they would come to do the work. On that morning we waited and waited and they didn't come. When I called, I was told that they had to re-schedule and did no apologize for not informing us or not coming. On the second date, the man who came to do the actual work ,looked at the job and said immediately that it would take much longer than the one and a half days that the estimator had told us. It actually took two days. We were at home the entire time and told both the worker and the estimator that we would be available to answer any questions. At no time did either of them consult us when a decision needed to be made. At the end of the third day, I looked at the patio as the worker was finishing up and saw that the smaller cracks had indeed opened up and that they had not filled them. The cracks that they had filled were filled with two different materials that were entirely different colors. In addition, they had to remove two small cement supports for an awning and they had filled one and not the other. When I asked why the smaller cracks had not been filled, the worker said that he had asked the estimator, instead of asking us, and the estimator had told him not to fill them because it was not in the contract. In fact, there was no signed contract. In addition, the estimate had included a fee for coming out and setting up. When I called the estimator to question this decision, he repeated, that the smaller cracks were not in the contract. When I spoke with his manager, he repeated the same statement. At this point they had not charged the 50% deposit and I closed that credit card, so that they could not charge the full amount. I also informed them that I had done this and that they would need a new authorization to charge anything. We corresponded by email with the manager and said we wanted them to return to fill in the additional cracks and the second support, and we didn't expect to pay the set-up fee. We also wanted to remove the dark green filler and replace it with a filler that was a closer color match. To show our good faith, we made a partial payment by check. A second worker was sent out to do the work this time. Although we chose the color of the filler from an email attachment, it also did not match the other filler. In the process we learned the name of the product they were using and the supplier that they used. When we called the supplier and the manufacturer of the product, we learned that this product is not made for outdoor use!!! When we tried to address this problem with the manager, he quickly became hostile and denied that the product was not for outdoor use. We made another partial payment, but the manager demanded the full amount. He also threatened to put a lien on our house for the remainder that was due for the shoddy work they had done. When we told him how we had learned that this was not an appropriate product for our patio, we never heard form him again. At no time did he apologize for the lousy job and his treatment of us. We have owned three homes over the course of over 40 years and have never been treated this way by any other contractor. We have hired plumbers, remodelers, carpenters, roofers, painters and more. Under no circumstances would I recommend this company again. Ohio (Michigan) Concrete has no concept of the meaning of customer service. They tried to bully us. It was a horrible ordeal.