Expensive for what it is. While nice and different from other exhibits around, the exhibit is small (Flower, jungle, wave, beach) and you can walk through pretty quickly.
I went thinking it would be somewhat similar to the TeamLab experience but it's not even close (but in HK there is no TeamLab...). It didn't feel that immersive to me - there were only 4 small rooms with light and sound displays. Unlike TeamLab the exhibits aren't interactive and repeat quite often.
For those seeking IG photos: the displays were projection based so it was hard to capture photos without seeing the lights projected on you.
I went on a rainy weekday so there weren't that many people and it was slightly cheaper.
Overall, it's something different to do in HK but I recommend going on the weekday to avoid the crowds and get cheaper admission. Also just make sure you aren't expecting too much here.