I think people who come to Go from not so productive languages might feel productive in Go. I mostly feel very unproductive with Go, like I'm wasting too much time dealing with code, when I should be thinking about the problem I'm solving. Although I almost completely stopped using Go at this point.
If I was to use Go, I would just use D instead. It's a much better language with similar strengths. Just didn't get as much "hype". Well, and had a couple of other issues but oh well...
Having said that, since Rust 1.0 was released, I'm not planning to use any other language unless paid for it. My favorite part of Rust is that it might not be the best tool for a particular job, but is reasonably close for anything I might throw at it: embedded, system tools, networking, web, whatever. Since I'm a generalist, I enjoy having a reliable multi-tool.
