Essentially the scheme allows you to claim back 25%-33% of your relevant costs for an SME, or 11% of your costs if the company falls under the large company scheme.
For economic stimulus to be effective, it's important that it feeds capital into the intended areas and that it's guarded against abuse.
Is a fifteen-hour work week plausible, or even possible? This most exciting prediction to have never come true was made by a man called Keynes.