It's basically a 15 minute VR anime "experience" really, divided into three rather short "chapters". There's also an "interaction" mode, but I don't have a VR set, so the stuff I can do in the interaction mode is limited (seems you need proper VR hardware for that - can only do 7/9 listed in the "checklist")

There are only two real reasons to "play" this game really:

1. you're interested in looking towards how VR Anime would eventually turn out to be - in which case, this short VR experience is quite the compelling demo for the future. The animations are extremely well done and really makes it feel like you got isekai'd straight into the anime set.
   
2. you really miss Holo and want to see her again, hear her again, and feel emotional again - in which case, I can say it was completely worth. It's been 8 years since the last anime season, but after playing this VR it literally felt like yesterday. Not going to lie, I cried tears of joys and gushed like a decade younger weabo.

Technically not worth the full price if you're only looking at its standalone merits, but as a Holo fan I'd say anything is worth the price if she's on it.
Still, more people paying full price just might convince relevant people to fund a Season 3, since there's only so much books to re-read every now and then, and really, half the joy of seeing Holo animated is listening to her CV's extremely skilled rendition of her character.

10/10 will replay it every now and then just to experience Holo calling me tawake again. Might even save up to buy/borrow some VR gear just so that I can headpat and fluff her tail in the future. :3