Considering buying a Remix Mini , but it is not available yet in Japan.
But there is a way to experience the Remix OS.
The recommended way is to use a USB and a PC an boot it to Remix OS.
Another way is to boot it on VirtualBox, which I did.
Runs well, though I do not have time to fully experiment with it.
The following thread on Reddit provides information on Mouse integration which worked very well.