Hi. I love it too, changed to this one after having a lot of digital and acoustic pianos. It is Casio Privia PX-S7000. It has lovely sound and wooden keys, offers a lot of response, and weights less than 20 kgs.
:) It is not an actual piano lesson, it was a video, published for a few of my students with whom we have already gone through the main parts of the song, and they simply needed just a bit of info for the points for the intro. Maybe, one day I will do a proper video tutorial for the song. Let me know if I can help. Anyways, thank you for the comment. All the best to you :)