Review on ServiceStack by Mike Morris

I like that it's easy to use with minimal overhead; you can easily build RESTful APIs in minutes without any frameworks or other dependencies (like Spring). It has some nice features outofthebox such as CORS support but if your API needs something more advanced then there are various plugins available which will help make things easier! We used this library at work where we needed an HTTP client service layer - very handy when working remotely from home because no needto install anything locally etc.; also great debugging tool since all requests go through our own proxy server so its really useful while developing new endpoints/services too ;-).