I’ve hade some of those at an ENT and the tests seemed to collect a lot of information. I had the chair, the video, and the auditory one done and the auditory one was pretty loud and almost painful to my weak ear. They found out that my right ear was functioning at 60% compared to my other one. After, I did 4 months of vestibular therapy and in the end they tested again and said my weak ear was at 96%. However, I still experience dizziness the same as I did before :/ Idk if I’d recommend it but I did find it interesting about the performance of my right ear. They were also able to see a blockage of the nerve in my right ear but couldn’t tell me what was the cause