I upgraded one of the computers at home to Windows 10 this weekend. It takes a while but seems to have been problem free. It’s still Windows and the machine still feels a bit sluggish but no more so than before under Windows 7 and at least it puts it in line to keep receiving security updates for a good long time to come.
We’re still holding back at work because certain bits of mission critical software (like the one for logging into the network) needs final signing off but it looks like the transition from Win7 to Win10 may well happen a bit more quickly than the one from WinXP to Win7 did.