I like the ease of use of CMR. It is very user friendly and I love the ability to customize the site to fit my needs. I have not had any issues with CMR. It is a great company and I would recommend them to anyone looking for a service provider. I am not a fan of the hotel selection and the fact that it is not all inclusive with regards to amenities. I would like to see more options for hotels. I have used CMR to pull registrations for a trade show and a convention. It was a lot of work, but I am glad that I was able to pull them off.