As everything: that depends. In general it's a good mindset change after .NET (well, unless you're doing F#) so it both grows your ways of thinking and your rep

As everything: that depends. In general it's a good mindset change after .NET (well, unless you're doing F#) so it both grows your ways of thinking and your repertoire. If you have limited time to learn and you're doing it for a new job, the equation might be different.