This video shows high-definition and slow-motion serves and receives from world-class players. Thats the good part.
The bad part is that they describe the serve and receive, but dont actually give any instruction of how to receive, when to use a certain receive against a serve, etc. This video is really just a series of clips with narration of whats happening--no actual instruction.
If you want to learn, you can get better content for free elsewhere online or in books.
- Byron White, MI