I have a Weed Eater Poweredge 550. It's a cheapie, but it works well. It always starts on the 3rd pull when cold. I did have an issue with the hitch pin coming off the axle on one wheel, but fixed that with a cotter pin.
It's about the size and weight of an electric edger and doesn't cost much more. It's definitely light duty, but if that's all you need it works fine.