Should I rotavate my garden?

I had a gardener come give me a quote to clear the weeds in an area of my garden where there is very little grass, he said he would strim it, rotavate it and then rake it to make it a bit more level. I thought good idea and I could probably even do that myself. However worried about the rotavator part as online it says it cuts up weeds and spreads them everywhere making it sound like it will be a nightmare in the future. should I really be concerned about the weed issue going forward.