People trying to run both together may find that unlike peanut butter and chocolate, there is less deliciousness. Specifically, a bunch of keys (like arrow, insert, etc) may stop working.
There’s a fix for the lost keys here.
I also had some issues making the virtual network connection between the host and virtual machines. I think that may have been more of upgrading from 6.05 to 6.5. Ultimately I saw the error message on the VM was complaining about a missing vmnet8 and went ahead and manually created a new vmnet8 – and that seemed to fix it. But what a lot of pain and manual troubleshooting for something sooo easy.