Is the one day Training, Seminar, Workshop really valuable? Whats about your experience and applications in business organizations?

Yes, the one-day workshop / seminar has value. It gives an opportunity for the participants to learn about new concepts / strategies / skills where they can practice and go more in depth in them later at their own pace. They get the face-to-face interaction experience that has richness in and of itself. They can also learn from each other and network to build effective relationships in business and friendships. They get the chance to ask live questions and discuss the answers and go through certain simulations / activities / exercises / games which they can't achieve when they do online learning.