When Progress bought Telerik and as Sitefinity consultants, we were concerned that the commitment to MVC might be lost. The .ASP life cycle has served its purpose for many years; however, modern client side complexities are better tackled with architecture capable of offering flexible client side packages and proven server side frameworks to handle the business needs.
Over the years we have made a number of custom Modules for Sitefinity. The unusual ability for Sitefinity to allow custom development while giving content administrators creative control has made working with it a very nice experience. From the beginning, as a Sitefinity consultancy, most of our custom Development focused on Sitefinity and not the page lifecycle. This is not the case with many other CMS systems. For clients, this really can save a lot of money in custom Web Application Development.
We looked at MVC and Sitefinity Widgets and feel that Progress seems to be staying true to driving Sitefinity more towards MVC. We can say that for the Windows environment, this is the best CMS on the market and overall among the top CMS solutions available.