microsoft wireless comfort keyboard

Hi,

Just wondering whether anyone is using a microsoft wireless comfort keyboard with latest version of OS 10 ie 10.13.3?

My comfort keyboard 5000 has just stopped working but is out of warranty and Microsoft support are not able to support or even confirm or otherwise whether there's a driver that supports this with latest mac.

Much as I'd prefer to have an apple product thereby avoiding the nightmare mental water torture that is Microsoft support, there their keyboard and mouse package so much more comfortable than anything Apple does but wouldn't mind the reassurance as to whether it works properly with Apple or not.

Thanks in anticipation,

Lucy