Groundsheets Useful Or a waste of money

Size 3 x 3 m (W x L). Material Canvas with a PVC coating. The seller is ainagrd and is located in this country NL. Tarpaulin heavy duty waterproof strong cover ground sheet camping tarp q2t7 tear resistant and water resistant. Temperature resistance -30°C to 70°C. With metal eyelets at all corners and along the edges.