ServiceStack is used to handle all of StackOverflow Careers 2.0 BackOffice Web + MQ services, making use of all its components e.g: Redis Client, OrmLite, Servi

ServiceStack is used to handle all of StackOverflow Careers 2.0 BackOffice Web + MQ services, making use of all its components e.g: Redis Client, OrmLite, ServiceStack's JSON, etc). I've personally led dev teams that have put ServiceStack in production enhancing existing internal CRM / SharePoint systems (where WCF wasn't able to run) for Man Investments and EON. I personally know many other IT consultants (professionally) that continue to deploy instances of it for their clients. We've collected a number of testimonials that we'll publish after we re-design our website. There have been over 100,000 total downloads in this past year alone, and I've had a number of chance run-ins with dev teams using it (even in my home town!), which I write a bit about it here: http://www.servicestack.net/100k-downloads/#feedback http://www.servicestack.net/100k-downloads/#feedback The above page also provides links where you can see the feedback we've received on Twitter and in the mailing list. ServiceStack was created 4 years ago as an OSS-run project, to use as an alternative to WCF - and we've been using ever since for all web service development. It's currently led by the core team who have received contributions from over 90 external contributors and is in the top 10 most popular OSS .NET projects on GitHub: https://github.com/languages/C%23/most_watched https://github.com/languages/C%23/most_watched Later this year we plan to offer a 'Long Term Supported' release that we'll provide commercial support options on.