The experience was so straightforward, we were concerned before we started about how to measure correctly but a quick email to the iseek blinds office and we were advised to send and picture and they would mark exactly where to measure and send back. The office was very helpful and quick to respond. The quality of the shutters is superb, they are easy to clean and operate. Had several people ask us where we got them and we are more than happy to recommend iseek blinds. Great experience!