Instruct: Classify the given review as either positive or negative.
Query: Haven't tried out all the joints but it looks thorough

I've only watched the video for two of the joints, hips and neck but I like how he breaks it down to the various joint groups and focuses on those. I notice some of the movements require more strength and flexibility so I'll need to build up to those. It is pretty comprehensive so it will be a good source for reference.