Thanks. Longtime user of VirtualBox which has the advantage of being easier to set up. Nor have I ever found VB's performance to be noticeably lacking, but it does seem plagued with bugs that never get fixed. And I've been exposed to QEMU through the Android Device Emulator in Android Studio. So I was wondering whether it's worth moving all my VB machines over to QEMU too.

I've always been put off by the fact QEMU needs configuring via commandline to set up. But if it was worth the effort, I'd make the jump.