I've mid sized lawns so went for the biggest electrical. Did need an extension as advised but no problems. Only thing missing on the instructions is placing the cable holder on the mower lower cross rail before attaching the extension arms. Had to remove and re-attach but easy job. 75 and it's the first new mower I've ever had and a pleasure to use. Cutting spring growth towards summer length, it was easy with slower push speed just to give it a chance. Grass bin also bigger on this model and took just that bit longer to fill and travel back to the compost bins. Not had long so I'll have to see how it wares over the coming year.