Where are you and what is your neighborhood like?
For example, living in south-eastern Wyoming on 5 acres, in a sub-division of 5-acre lots. It would not be a good idea to get guineas as they are loud and like to range and you will get complaints. But, a 5-acre lot surrounded by farmland - yes, guineas may be a good idea for you.
We have 24 acres. My guineas range all 24 plus the 13 acres of horse pasture north of us. Plus, they like to explore about 15 acres of the 40 acre cash-crop field across the street. Plus, I have seen them returning home from the swamp across the road. AND they go to the neighbors across the street every morning to eat the sunflower seed that she puts out for them.
They usually return the to coop at night, but I have seen them sleeping in the pine tree right behind their coop, and in the pine tree near my garden. I have had 1 in the tree and 3 in the coop ...
They have gotten trapped in the neighbors trees by a 2 day snow storm. As soon as the driveways and roads were plowed, they came home and stayed by the coop for about 2 weeks.
I feed them 50/50 layer and scratch. I don't know how old they are since they came with the house, but we have lived there for 6 years now and they were full grown when we moved in.