Anyone have any experience with the outdoor sweeper at this link or similar item? I need one to vacuum off leaves and twig debris from an older stone courtyard, paved with real stone of irregular depths. The Blow/Vac I've used for some years is just getting to be a pain to use, i.e. bending over, slinging the bag over the shoulder, my back isn't young anymore. I thought perhaps a shop vac or sweeper may do a decent job.

http://www.globalindustrial.com/p/janitorial-maintenance/floor-care/sweepers/shopvac-industrial-indoor-outdoor-sweeper?infoParam.campaignId=T9F&gclid=CJ7qz-_Fm8wCFQEdaQod4HQOVw