At work, the answer is no. We're a heavy Windows environment, so integration would be a lot harder than using Windows. We're also heavy users of both SSIS and SSRS; both are currently unavailable on SQL Server on Linux; a huge nail is it's coffin right now.

Would I make the switch else where? Unsure, but probably not. SQL Server on Linux feels far too incomplete as it stands. There's no Linux Management tool at the moment either; SSMS is only available on Windows, and SQL Operations Studio isn't a Management tool and is missing a lot of the functionality that SSMS gives.

Maybe in a few years SQL Server on Linux will be on par, but right now I'm not entertaining it.