I've been working with Umbraco since version 3.x and it has been my CMS of choice for a very long time now. Before that, I used DNN a lot & I'm so glad we changed so many years ago. I've been a M$ stack dev/architect for more than 20 years now and have been bouncing around the world freelancing since 2009. Should you ever need help with anything, please reach out to me on http://coderPro.net